Excellent read on the iPad as a desktop virtualization thin client. If you’ve seen any science fiction (StarTrek, Babylon 5, etc) they all use iPad/tablet like computers. The traditional laptop/desktop form factor requires you working at a desk. If you’re doing anything standing up, normal computers fail.
The problem I think Desktop Virtualization will have is:
1) The problem with keeping all your data in the cloud is you have to be able to get to the cloud. So, it only works where you have wifi or 3/4G, and its useless on planes or in rural areas.
2) All the desktop export protocols sucks. I’ve not used VDI, but VNC is teh suck, and RDP is only usable if you’ve got a good WAN connection. The iPad will work fine for carrying it to the conference room, but not for being able to get into your work PC at home to finish that memo your boss wants. (Speaking of protocol suckage, I’m seriously considering moving my primary PC to Win7 w/ VMWare Workstation so I can RDP into it when I need to. But thats another post about Command Center 3.0)
3) The iPads 1024×768 screen resolution is straight out of the late 1980s. Grabbing your desktop off your desk terminal (1680×1050) and moving it there will make all your windows difficult to use. At least windows lets you resize from all corners and not just the lower right like on the Mac.