You gotta love the advances in storage.
Dilemma: You have a tablet/ultra portable laptop, but you need to carry around virtual machines for Whidbey, Longhorn, Oracle/Java (shhhhh....), etc. development.
Solution: FireLite SmartDisk 40 GB drive, no power cord, runs off USB power, pretty fast, about the size of a PDA and lighter than one.
Very cool, dilemma solved.