Someone is offering a more civilized option. The people at My Airport Butler have created an instant folding table-top surface that you unfold, slip the tab under the handle of your carry-on suitcase (if you use one) and there you have it, a surface roughly the width of said suitcase with cut-out cup holder and room for food, book, PDA or cell phone. Doesn’t look sturdy enough for a laptop, but then again, that’s what laps are for. It sells for $19.95, plus shipping.
Check out www.myairportbutler.com for information.