When Google first released Android 3.0, they put out an API for better adapting applications to different screen sizes know as Fragments API. Unfortunately, as Fragments is a part of Honeycomb, the API “does not help developers whose applications target earlier versions of Android” — until now.
Google has just extended the compatibility of the API so that apps written for as low as Android 1.6 can be modified to utilize a more tablet friendly UI. As far as the availability of tablet compatible apps are concerned, Fragments should help give Android the boost many have been looking for.
For more information, visit the Android Developers Blog now.