Apple isn't the only one getting into the multitouch peripheral game. Here's Microsoft's upcoming Arc Touch mouse, as leaked to a German online store.
The mouse features a touchpad for touch scrolling and the like, the ability to track on pretty much any surface, a battery indicator and a wireless USB dongle. It can also fold out to lay flat for easy transport, which is a nice touch.
It looks like it'll be costing $70 when its released in the very near future.