MobileMe is dead. Long live iCloud | Apple Talk - CNET News:
Apple's solution is to put data, and the ferrying process, in the cloud, providing a system where devices effectively become vessels. You buy a device from a store, plug in your Apple ID, and it syncs up with iCloud to tweak every setting, add every song, and every app just as it was on your other devices.
But this big solution still centers on a walled garden approach that critics have taken aim at with the company's other products. You're fine as long as you're in Apple's ecosystem, but step out and your data does not come along for the ride. In other words, Apple's replaced one set of data behaviors with another.