I have recently move from A Bold 9700 to Android 2.2, and I just want to say that I can't believe I hadn't done this sooner. Blackberry was great, ya, but since touching Android, I'm afriad I have been lost to their competitors. At least there is a forseeable future for Android, definitely due to the fact that it runs on SEVERAL devices, as opposed to iPhone being iPhone and Blackberry being Blackberry. I can now purchase a Samsung, HTC you name it and enjoy the same experience anywhere on multiple devices.
I had a DroidX for awhile and it was a buggy device. Especially once a lot of apps were installed.