The way mobile processors aredeveloping with upto eight cores for Graphical Processing. Mobiles will never be the same again. In a few years time we will have full fledged ERP solutions on the mobile. Mobiles will be used for hard core gaming.Also some times mobiles may replace the Servers, well may be in five years.
Sure things are happening and you have mobiles powering laptops. With GPU's used for Hardware acceleration, mobiles will become powerful computing devices which would be ultra portable and most powerful. We may be having a fully secure mobile with two virtual OS, boot one for personal use, one for office use, to keep the company data safe.
Seamless and almost realtime data access would be the order of the day. A gamer would be completely submerged by the number of games and speed of the mobile. Maybe here a tablet may serve a even better purpose by giving more space to the screen and convenience of gaming.
Devices as big as a shoe box may contain hundreds of Mobile processors with a common interface for maintenance and other purposes, will reduce the cost of computing and power and cooling costs will come down drastically.It will be esp useful where real estate costs are rising like hell, and also youi could transfer a data center at your will.