When you absolutely must have a full-sized keyboard to use when you’re out and about you might want to look at the Atek OnBoard Travel Keyboard. The Atek is a full-sized keyboard that sits in a sliding cover that the company says lets you "get more work done". That may be true but at 14.75 inches long when stored and 1.4 pounds the Atek may be as big as that netbook you’re carrying. Oh, there’s an inflatable palm rest, too. $30.