ive had a Blackberry and hated it for being such a Low Tech Device and sold it by the Second Week it was in my hands
Owned a Android Droid, and Was Ok and works Great specially on Multitask, but the Bad Updates and basically that they depend on Both The Manufacturer and your Carrier, so I decided To Sell that Piece of junk on my 4th Month
I now Own My second Iphone, an iphone 4 and what it lacks here is a Good Multitasking function, but once Jailbreaked You start Tweaking Everything And Blows BB and ANDROID away By Far