Android's fragmentation will surely lessen over the course of the next few months as a handful of handsets are expected to move forward with Android 2.1
Eclair. Currently that specific build of the platform is beginning to build some momentum as the latest figures surrounding the Android platform percentages have been revealed. Android 2.1 is taking a commanding lead at 45.1 percent of all Android phones running the platform for the two weeks ending June 1 – that figure is up from the 32.4 percent from what was seen for the two weeks ending May 17. Both Android 1.5 Cupcake and 1.6 Donut are slowly receding as we've seen the HTC Hero
and Droid Eris
being the biggest contributors to the cause. Now that news about major Android updates are expected to happen on a yearly basis
way down the road, we can soon imagine a world where Android's fragmentation will become nothing but a memory.
source: Android Developer Blog
via Android Central