Initially it seems like the screen feels small, but after using it, it seems very responsive and looks great overall.
This is my first day so I am not sure on the battery yet. I have wifi on, gps and have used it quuite a bit and I still have about 90 percebt after 6 hours.
No gripes yet, I will keep you posted.
The overall integration of all of your contacts and social networking sites is cool. The widgets are also pretty cool. A lot of variety and nicely implimented.
I will post more tomorrow about some other details.