Google has announced that their Fragments API – an API that was introduced with Android 3.0 Honeycomb – is now being made available for all versions of Android starting with 1.6. Developers will have to download an Android Compatibility Package to take advantage, but it’s easy to install and get started with it.
The fragments API makes developing applications for several screen sizes easier on developers so that that “write once, run anywhere” philosophy is easier than ever for them to pull off. (Which is important now more than ever as the Android tablet market is expected to explode soon.) Find what you need over at the Android Developers site now.