Whichever works for ya best. Personally I upgraded my pro to a pre, updated to 1.1 and it has been awesome since, I can't imaging going to 6.5 now.. At least till wm7 if its any good. It has the look and feel I have been trying to achieve on all my winmo devices and what it does, it does very well... I'm perfectly happy with my pre cuz it has what I currently need atm (great browser, contact manager, calendar, email, multimedia etc. Without having to use 3rd party alternatives) everything else is just icing on the cake