The Asus Eee Keyboard
Atom N270 processor. 800x480 touch panel screen. SSD with 16 or 32 GB storage. b/g/n WiFi. A metric poo-tonne of IO ports for audio, video, external storage, docking, etc. etc.
Yeah, the screen res is still on the low side to be truly useful for portable software development, but I'd imagine it would work GREAT in a pinch, and UWB video transfer or docking ports would allow easy connection to a fullsize monitor for non-emergency scenarios.
Still awaiting a price and release date ... eagerly! (Christmas present to self perhaps? :)