Techradar posted a review on the Microsoft Wedge Touch Mouse

With the launch of Windows 8, Microsoft has released some new peripherals that have been designed to complement the new operating system, and its new way of doing things. First up is the Microsoft Wedge Touch Mouse, a rather odd looking Bluetooth-only mouse.

In the past, Microsoft has launched a number of ergonomic peripherals that are comfortable to use for long periods of time. As you can guess from one look at this mouse, this isn't one of them.

But that's not the aim of this mouse. It's not designed for sitting in front of a desktop PC for hours at a time, but for quickly using with a Windows 8-equipped tablet. There's no dongle, but as long as your tablet is Bluetooth capable you can get Windows 8 to search, detect and connect to the mouse rather painlessly.

  Microsoft Wedge Touch Mouse Review