diff --git a/src/index.ts b/src/index.ts
index 7632e598..8ad5c793 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -29,6 +29,7 @@ import {Facebook} from './plugins/facebook';
 import {Flashlight} from './plugins/flashlight';
 import {Geolocation} from './plugins/geolocation';
 import {Globalization} from './plugins/globalization';
+import {Hotspot} from  './plugins/hotspot';
 import {ImagePicker} from './plugins/imagepicker';
 import {Keyboard} from './plugins/keyboard';
 import {LaunchNavigator} from './plugins/launchnavigator';
@@ -39,6 +40,7 @@ import {Splashscreen} from './plugins/splashscreen';
 import {StatusBar} from './plugins/statusbar';
 import {Toast} from './plugins/toast';
 import {TouchID} from './plugins/touchid';
+import {Vibration} from './plugins/vibration';
 
 export {
   ActionSheet,
@@ -65,6 +67,7 @@ export {
   Flashlight,
   Geolocation,
   Globalization,
+  Hotspot,
   ImagePicker,
   Keyboard,
   LaunchNavigator,
@@ -74,7 +77,8 @@ export {
   Splashscreen,
   StatusBar,
   Toast,
-  TouchID
+  TouchID,
+  Vibration
 }
 
 export * from './plugins/plugin';
@@ -105,6 +109,7 @@ window['IonicNative'] = {
   Flashlight: Flashlight,
   Geolocation: Geolocation,
   Globalization: Globalization,
+  Hotspot: Hotspot,
   ImagePicker: ImagePicker,
   Keyboard: Keyboard,
   LaunchNavigator: LaunchNavigator,
@@ -114,7 +119,8 @@ window['IonicNative'] = {
   Splashscreen: Splashscreen,
   StatusBar: StatusBar,
   Toast: Toast,
-  TouchID: TouchID
+  TouchID: TouchID,
+  Vibration: Vibration
 };
 
 // To help developers using cordova, we listen for the device ready event and
diff --git a/src/plugins/datepicker.ts b/src/plugins/datepicker.ts
index 0d955683..47b89dda 100644
--- a/src/plugins/datepicker.ts
+++ b/src/plugins/datepicker.ts
@@ -20,47 +20,47 @@ export interface datePickerOptions {
    * Type: Date | empty String
    * Default: empty String
    */
-  minDate: Date,
+  minDate?: Date,
 
   /**
-   * Platforms: iOS, Android, Windows
+   * Platforms?: iOS, Android, Windows
    * Maximum date
-   * Type: Date | empty String
-   * Default: empty String
+   * Type?: Date | empty String
+   * Default?: empty String
    */
-  maxDate: Date,
+  maxDate?: Date,
 
   /**
-   * Platforms: Android
+   * Platforms?: Android
    * Label for the dialog title. If empty, uses android default (Set date/Set time).
-   * Type: String
-   * Default: empty String
+   * Type?: String
+   * Default?: empty String
    */
-  titleText: string,
+  titleText?: string,
 
   /**
-   * Platforms: Android
+   * Platforms?: Android
    * Label of BUTTON_POSITIVE (done button) on Android
    */
-  okText: string,
+  okText?: string,
 
   // TODO complete documentation here, and copy params & docs to main plugin docs
-  cancelText: string,
-  todayText: string,
-  nowText: string,
-  is24Hour: boolean,
-  androidTheme: number,
-  allowOldDate: boolean,
-  allowFutureDates: boolean,
-  doneButtonLabel: string,
-  doneButtonColor: string,
-  cancelButtonLabel: string,
-  cancelButtonColor: string,
-  x: number,
-  y: number,
-  minuteInterval: number,
-  popoverArrowDirection: string,
-  locale: string
+  cancelText?: string,
+  todayText?: string,
+  nowText?: string,
+  is24Hour?: boolean,
+  androidTheme?: number,
+  allowOldDate?: boolean,
+  allowFutureDates?: boolean,
+  doneButtonLabel?: string,
+  doneButtonColor?: string,
+  cancelButtonLabel?: string,
+  cancelButtonColor?: string,
+  x?: number,
+  y?: number,
+  minuteInterval?: number,
+  popoverArrowDirection?: string,
+  locale?: string
 }
 
 /**
diff --git a/src/plugins/deviceorientation.ts b/src/plugins/deviceorientation.ts
index 016a9fa3..31a87dc7 100644
--- a/src/plugins/deviceorientation.ts
+++ b/src/plugins/deviceorientation.ts
@@ -30,12 +30,12 @@ export interface CompassOptions {
   /**
    * How often to retrieve the compass heading in milliseconds. (Number) (Default: 100)
    */
-  frequency : number,
+  frequency? : number,
 
   /**
    * The change in degrees required to initiate a watchHeading success callback. When this value is set, frequency is ignored. (Number)
    */
-  filter : number
+  filter? : number
 
 }
 
diff --git a/src/plugins/geolocation.ts b/src/plugins/geolocation.ts
index 054dc70c..70214edd 100644
--- a/src/plugins/geolocation.ts
+++ b/src/plugins/geolocation.ts
@@ -69,7 +69,7 @@ export interface GeolocationOptions {
    * retrieve the real current position. If set to Infinity the device must
    * return a cached position regardless of its age. Default: 0.
    */
-  maximumAge: number;
+  maximumAge?: number;
 
   /**
    * Is a positive long value representing the maximum length of time
@@ -77,7 +77,7 @@ export interface GeolocationOptions {
    * position. The default value is Infinity, meaning that getCurrentPosition()
    * won't return until the position is available.
    */
-  timeout: number;
+  timeout?: number;
 
   /**
    * Indicates the application would like to receive the best possible results.
@@ -88,7 +88,7 @@ export interface GeolocationOptions {
    * responding more quickly and/or using less power. Default: false.
    * @type {boolean}
    */
-  enableHighAccuracy: boolean;
+  enableHighAccuracy?: boolean;
 }
 
 
diff --git a/src/plugins/launchnavigator.ts b/src/plugins/launchnavigator.ts
index 7a009e5e..359c6ef6 100644
--- a/src/plugins/launchnavigator.ts
+++ b/src/plugins/launchnavigator.ts
@@ -6,43 +6,43 @@ export interface launchNavigatorOptions {
    * iOS, Android, Windows
    * If true, the plugin will NOT attempt to use the geolocation plugin to determine the current device position when the start location parameter is omitted. Defaults to false.
    */
-  disableAutoGeolocation : boolean,
+  disableAutoGeolocation? : boolean,
 
   /**
    * iOS, Android, Windows
    * Transportation mode for navigation: "driving", "walking" or "transit". Defaults to "driving" if not specified.
    */
-  transportMode : string,
+  transportMode? : string,
 
   /**
    * iOS
    * If true, plugin will attempt to launch Google Maps instead of Apple Maps. If Google Maps is not available, it will fall back to Apple Maps.
    */
-  preferGoogleMaps : boolean,
+  preferGoogleMaps? : boolean,
 
   /**
    * iOS
    * If using Google Maps and the app has a URL scheme, passing this to Google Maps will display a button which returns to the app.
    */
-  urlScheme : string,
+  urlScheme? : string,
 
   /**
    * iOS
    * If using Google Maps with a URL scheme, this specifies the text of the button in Google Maps which returns to the app. Defaults to "Back" if not specified.
    */
-  backButtonText : string,
+  backButtonText? : string,
 
   /**
    * iOS
    * If true, debug log output will be generated by the plugin. Defaults to false.
    */
-  enableDebug : boolean,
+  enableDebug? : boolean,
 
   /**
    * Android
    * Navigation mode in which to open Google Maps app: "maps" or "turn-by-turn". Defaults to "maps" if not specified.
    */
-  navigationMode : string,
+  navigationMode? : string,
 
 }
 
diff --git a/src/plugins/localnotifications.ts b/src/plugins/localnotifications.ts
index a16ac2f1..2b0d086f 100644
--- a/src/plugins/localnotifications.ts
+++ b/src/plugins/localnotifications.ts
@@ -194,64 +194,64 @@ export interface Notification {
    * A unique identifier required to clear, cancel, update or retrieve the local notification in the future
    * Default: 0
    */
-  id : number,
+  id? : number,
 
   /**
    * First row of the notification
    * Default: Empty string (iOS) or the app name (Android)
    */
-  title : string,
+  title? : string,
 
   /**
    * Second row of the notification
    * Default: Empty string
    */
-  text : string,
+  text? : string,
 
   /**
    * The interval at which to reschedule the local notification. That can be a value of second, minute, hour, day, week, month or year
    * Default: 0 (which means that the system triggers the local notification once)
    */
-  every : string,
+  every? : string,
 
   /**
    * The date and time when the system should deliver the local notification. If the specified value is nil or is a date in the past, the local notification is delivered immediately.
    * Default: now ~ new Date()
    */
-  at : any,
-  firstAt : any,
+  at? : any,
+  firstAt? : any,
 
   /**
    * The number currently set as the badge of the app icon in Springboard (iOS) or at the right-hand side of the local notification (Android)
    * Default: 0 (which means don't show a number)
    */
-  badge : number,
+  badge? : number,
 
   /**
    * Uri of the file containing the sound to play when an alert is displayed
    * Default: res://platform_default
    */
-  sound : string,
+  sound? : string,
 
   /**
    * Arbitrary data, objects will be encoded to JSON string
    * Default: null
    */
-  data : any,
+  data? : any,
 
   /**
    * ANDROID ONLY
    * Uri of the icon that is shown in the ticker and notification
    * Default: res://icon
    */
-  icon : string,
+  icon? : string,
 
   /**
    * ANDROID ONLY
    * Uri of the resource (only res://) to use in the notification layouts. Different classes of devices may return different sizes
    * Default: res://ic_popup_reminder
    */
-  smallIcon : string,
+  smallIcon? : string,
 
 
   /**
@@ -261,12 +261,12 @@ export interface Notification {
    * - They do not have an 'X' close button, and are not affected by the "Clear all" button
    * Default: false
    */
-  ongoing : boolean,
+  ongoing? : boolean,
 
   /**
    * ANDROID ONLY
    * ARGB value that you would like the LED on the device to blink
    * Default: FFFFFF
    */
-  led : string
+  led? : string
 }
\ No newline at end of file
diff --git a/src/plugins/push.ts b/src/plugins/push.ts
index 52392bda..deb3e67a 100644
--- a/src/plugins/push.ts
+++ b/src/plugins/push.ts
@@ -232,7 +232,7 @@ export interface AndroidPushOptions {
    * If the array contains one or more strings each string will be used to
    * subscribe to a GcmPubSub topic.
    */
-  topics: string[];
+  topics?: string[];
 }
 
 export interface PushOptions {
diff --git a/src/plugins/sms.ts b/src/plugins/sms.ts
index 9879d7b8..8d1ec8e7 100644
--- a/src/plugins/sms.ts
+++ b/src/plugins/sms.ts
@@ -8,9 +8,9 @@ export interface smsOptions {
   /**
    * Set to true to replace \n by a new line. Default: false
    */
-  replaceLineBreaks : boolean,
+  replaceLineBreaks? : boolean,
 
-  android : smsOptionsAndroid
+  android? : smsOptionsAndroid
 
 }
 
@@ -19,7 +19,7 @@ export interface smsOptionsAndroid {
   /**
    * Set to "INTENT" to send SMS with the native android SMS messaging. Leaving it empty will send the SMS without opening any app.
    */
-  intent : string
+  intent? : string
 
 }