There's been some discussion of late that, perhaps, Android phone manufacturers are iterating handsets at a pace which is detrimental to product polish and subsequent software support. In fact, a couple of days ago I took a look at the state of Android phones on US carriers with a few simple charts.
I also promised to write another post looking at how quickly, as opposed to how prolifically, Android handsets are moving in the US marketplace. I decided to look at two carriers - T-Mobile and Verizon. In the interest of cleaning up the timelines, I decided not to include budget handsets or QWERTY phones, because we all know the subtext of this whole conversation: the iPhone.