Maximum PC: As far as we're concerned, every all-in-one PC should have a built-in battery backup, especially now that they're becoming thin and light enough to move from room to room with relative ease. Battery backup is one of the features found on Asus' ET2040 AIO (stays running on battery for up to an hour), though that's not the only thing unique about this system. It also ventures off the beaten path by recognizing gestures without having to touch the screen.
