iphone or blackberry curve?

Question by Alex: iphone or blackberry curve?
i really like the design of the 8530, and 8900 HOWEVER, with the current iphone 3g i have is it worth the change? i've always liked the keyboard on the blackberry, but during the iphone frenzy two years ago i stuck with the iphone. the apps i mainly use on iphone are facebook, twitter, myspace etc. i figured i could live without all the games and such on blackberry if they had the same free social net. apps? what do YOU like about your

google blackberry maps ...