One way to get around the beverage cart.

I flew Virgin America this summer and while most people commented that the aircraft looked like a nightclub, the best part of it for me was the way you ordered food. You order and pay via the touchscreen on the seatback in front of you. So your order comes when you order it. Not when they decide to clog the aisles for an hour with beverage carts. The other really cool thing is that you can instant message with people in other seats using the touchscreen. Certainly useful for when get seated apart from your group or if you need to communicate with a colleague who you'd rather not to spend the whole flight next to. Or you can always try it to send a clear message to the kid in the row behind you who's kicking your seat.