Just got one today. Awesome device.
I picked up an extended life battery for $30 on Amazon too. It was suggested to me by my brother and his girlfriend, and it was on sale, so I went for it heh.
I'm still playing around with it and setting it up (actually setup is minimal since all my apps and the majority of my settings sync'd from my Gmail account). I'll post more about the strengths/weaknesses after a week of playing.