Got my Droid yesterday, and the Eris for the wife.
OH MY GOD! What a phone! This thing in unreal. The display is STUNNING! And, this thing is FAST! AND, the Market! WOW! There is some really cool stuff in there - and, gobs that is free.
The only negatives so far are battery life, and the soft keys and volume rocker are waaaay to easy to hit. Not real sure about the slider keyboard, yet, but I'm giving it a shot. I think I can be more accurate with that than the virtual keyboard.
No regrets whatsoever switching from the BlackBerry.
Great forum you folks have here. I have been reading up for a few weeks now, getting ready for the switch.
The best part is, Best Buy price matched Wirefly.