Yeah, I'm at 2.2 on a Sprint HTC Evo Android. I really like the phone as I'm learning to use it. There are a ton of great features and obviously lots of apps. I found it odd that they didn't have a notes program on it but I found a great one that had 150,000+ positive reviews and it was free. It's working perfectly. One thing I'm currently trying to figure out is on my Blackberry, I had a sound profile that came with called Phone Only. With that selected, the cell phone would ring and the Alarm Clock would go off if it was set but no email notifications, calendar reminders etc.. I used this setting at bedtime, in case I got a call and so I could use the alarm in a hotel room.
The Android I have apparently doesn't have a way to setup that profile, at least not that I have found. I have to manually turn off notifications for each of the email accounts I have on the phone, which is currently two. Also, weirdly, yesterday afternoon my phone decided I was in Istanbul. So my clock showed it was 10 AM 01/01/2011, when it was actually 9 PM EST 12/31/2010.
I have turned off GPS as I noticed it really ate the battery up. If I turn it back on, it fixes the time. If I turn it back off, I'm back in Istanbul....