iLuv RockWall

The RockWall is a dual-USB wall charger that can power an iPad and iPhone simultaneously. The iPad port is 10.5W and the iPhone port is 5W, so each device will charge fairly quickly.

The main portion of the unit can be swiveled 90° away from the power outlet surface by pressing the big silver buttons on either side, allowing for better compatibility with just about any setup. And speaking of compatibility, the power plug itself can be detached and swapped with various international plugs (not included). It's also small enough to easily toss into a bag, so all in all, it's a pretty good travel solution.

$40 on Amazon.