So, center seat between two businessmen, each with his Blackberry. Mom and two kids in the row behind, with the kids periodically going through 20-30 minute long sessions of kicking and/or bumping the seat. A half-turn and glare after 15 minutes or so would get Mom to take action, but it would only start up later.
But I had books: the fourth Weather Warden book in paper for the "no electronics" phase, Hallowed Hunt on the PDA because the list discussion is making me re-read my favorite bits, and when the eyes and brain got too tired for that, Murder Must Advertise by Sayers as an audiobook on the iPod. Didn't finish re-reading it during last month's discussion on LordPeter, and it's too much of a favorite to leave in the middle.