I will be leaving BB for iphone 4- preorder Tuesday
I have been a loyal BB user from the curve 8300 to the iphone 3G for a few weeks and then to the 9000 and now the 9700. I left the iphone 3g due to battery life.
Blackberry has really not evolved. The 9700 is just not that much more than a curve 8300. Yes it has more capability but just not as much as other phones.
The iphone 4 is a huge jump IMO. Just the face time application is worth it not to mention 5 mp camera with flash now and the video shooting in HD (720p) and mutitasking.
Sorry RIM you are just not evolving quickly enough for me. Have fun waiting on OS6.