The hid module works fine, and I'm using a Logitech bluetooth keyboard/mouse with my system right now.
Most of the Belkin USB bluetooth dongles work fine (at least the three I've tried). The Logitech keyboard came with its own dongle.
I'd think twice about that keyboard, though. Looks great, but do you really want to be banging your fingers on a desk all day? There's no key travel, and I'd think that'd wear on your hands pretty quick.