Cory’s got another good post out on his thoughts on the future of mobile devices, called The Future of Mobility Will Embrace Copying (and Water Won’t Get Any Less Wet, Either). It’s a good read.
If mobility is going to be seamless, it's going to have to work with products from every vendor under the sun, from multinationals to three guys in a garage in Singapore or Silicon Valley. The seamless movement of services between devices and locations can't hinge on the capacity of device and service companies to cooperate with one another and to swear off locking in their users. A mobile future is one where all your data -- the music you buy, the photos you take, the calendar you keep -- belongs to you and is never put away in a box to which you lack the keys.