title: Prompt Android App User to Update App if current version <> market version
body: <p>Lets say my Android App version 0.1 is installed currently on the User's phone. Everytime they launch my App I want to check if there is a different version available in the Android Market let's say this version is 0.2. If there is a mismatch between these two version I want to show a dialog box prompting the user to Upgrade the App. </p>
  
  <p>I totally understand there exists a notification procedure from Android Market itself to the users but as far as my Analytics data is concerned it is not very effective in reminding users to upgrade to the new version of the App.</p>
  
  <p>Any insight would be very helpful. Thanks StackOverflowers, you guys rock!</p>