Travel was supposed to become a tiny bit less aggravating. The Transportation Security Administration (TSA) approved use of carry-on bag designs that allow pass-through of laptops without removing them for X-ray inspection.
My partner spotted one of these at the jQuery conference in Boston on Sunday. It's a cheap ($249.99 on Newegg.com) and adequately powered (2GB) tiny (2 lbs, 7") laptop. It's the perfect little buddy to take with you to conferences, off-site meetings or other events.