I seem to read really mixed reports about the Android fragmentation problem. For every report like Joe's, I see others that say developing for Android is fine. I can't get a good read on where the actual truth is.

I work in a group that does research on mobile healthcare applications. We're not a software company, so we can't afford to have a whole pile of devices here for testing. With the iOS platform, at least I can be confident things work if I can test on my iPhone and our iPod touch test units. That said, Android is going to eventually be too big to ignore sometime soon. I'd be curious what other devs around here have experienced. Maybe we should be using PhoneGap to avoid those sorts of problems?