Finally got my free Xoom Keyboard and Mouse bundle from Motorola. The keyboard looks pretty slick, but the mouse looks like a basic portable mouse.
Pairing them with the Xoom was easy, just turn them on and wait for the lights to start flashing, then scan for devices from the Xoom. Once its found them, just pair them.
Android is suprisingly useable with a keyboard/mouse combination. You can double click on things, scroll through a window using the wheel, but you can also do the normal touch gestures with the mouse by holding the left button down. If it had a set of full desktop type apps such as Microsoft Office or even LibreOffice, it would have made a really good netbook OS.