So Motorola just announced its Motorola Atrix 4G Android device for AT&T. It’s dual-core, which means it’s got the processing power to do a lot.
They will sell a dock that has HDMI output and USB ports that allow you to basically use the Atrix as a computer. You can also dock it into the laptop accessory, which is a laptop with a dock in the back.
Check out the video from the Engadget article:
You can run desktop PC sized applications, and there’s a nice UI to boot. When you undock the phone from one and take it somewhere else, the same state you were in is retained… really awesome stuff.