CB-12726: Device Motion - SUNSET

 This closes #53
diff --git a/README.md b/README.md
index ef38174..21279d8 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,8 @@
 
 # cordova-plugin-device-motion
 
+> This plugin is no longer being worked on as the functionality provided by this plugin is now included in most browsers. For users who want to get the device's acceleration they should implement a `devicemotion ` event listener as outlined in the [W3C DeviceOrientation Event Specification](https://w3c.github.io/deviceorientation/spec-source-orientation.html).
+
 This plugin provides access to the device's accelerometer. The accelerometer is
 a motion sensor that detects the change (_delta_) in movement relative to the
 current device orientation, in three dimensions along the _x_, _y_, and _z_
diff --git a/package.json b/package.json
index f741a55..f664112 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "cordova-plugin-device-motion",
   "version": "1.2.6-dev",
-  "description": "Cordova Device Motion Plugin",
+  "description": "[DEPRECATED] Cordova Device Motion Plugin",
   "types": "./types/index.d.ts",
   "cordova": {
     "id": "cordova-plugin-device-motion",
diff --git a/plugin.xml b/plugin.xml
index 2549d05..6e65d9f 100644
--- a/plugin.xml
+++ b/plugin.xml
@@ -23,7 +23,7 @@
       version="1.2.6-dev">
 
     <name>Device Motion</name>
-    <description>Cordova Device Motion Plugin</description>
+    <description>[DEPRECATED] Cordova Device Motion Plugin</description>
     <license>Apache 2.0</license>
     <keywords>cordova,device,motion</keywords>
     <repo>https://git-wip-us.apache.org/repos/asf/cordova-plugin-device-motion.git</repo>