So by the end of the year Android developers will have 5 different versions (2.1, 2.2, 2.3, 3.0 and 4.0) of Android in the wild and over 40% of which are running a version that's almost 18 months old (2.2) with no upgrade path.

And they say fragmentation isn't an issue...

It's Nokia and Symbian all over again.