While ICS and Jelly Bean are definitely better, the unfortunate fact is that almost half of the Android devices out there are still running 2.x, which doesn't bode well for writing and distributing Android apps strictly in HTML/CSS/Javascript. That figure likely doesn't take into account Kindle Fire's, either, since it's drawn from Play store statistics.
Speaking of which, I'm also tired of dealing with all of the different store APIs and notification platforms on Android.