You have to be specific in what kinda Blackberry, what model? I would still overall go with the G1 Unless its against the Curve. You might wanna wait I hear there is going to be a new Android for T-Mobile, plus G1 like firefox has a lot of customization features over BB's.
Damn, well I have Sprint (I know /phail) So its either a Blackberry Bold/Curve or switch over to T-Mobile and get a G1. I dont know what do to x.x My friend has a G1, which is why I dont wanna get it cuase he already has it. None of my friends have a BB, so yeah, i wanna be original. All my friends (for the most part) have sidekicks so SK is a No No! So yeah, ill make my decision later today :/
Pft, if you have Sprint, then you should just the new Palm Pre with WebOS it's pretty handsome! My brother got it the 6th, pretty nice http://now.sprint.com/palmpre/?id12=UHP_Masthead_060609_PreLaunch