With the release of iOS 5 upon us and the iPhone 4S coming imminently, Information Appliance Associates has announced the release of BerryMover, an app that can perform a brain transplant from a BlackBerry to an iPhone, right on the iOS device itself.

http://www.macworld.com/article/162967/2011/10/
berrymover_adds_new_blackberry_to_iphone_migration_option.html