Pros: Way improved batt life, SD slot built-in, no button issue, no dust under screen
Cons: Backlight sometimes doesn't respond on power-up, 1-2 titles still affected by GAPI prob, UI slows down occasionally
I had a 3630 before my 3870, and like my new ipaq but some of the issues may bother you. Once, i couldn't turn the backlight on for an entire day, despite resetting, switching off, etc.
