Microsoft announced a bunch of new Windows 8 compatible accessories today. These include several new mice and keyboards, all of which will work with current hardware along with the upcoming Microsoft Surface.
http://windowsteamblog.com/windows/b/windowsexperience/archive/2012/07/30/new-windows-8-ready-mice-and-keyboards-from-microsoft-hardware.aspx
The Wedge Mobile Keyboard. Actually looks like a nice portable keyboard. Would be nice for the Surface or any other tablet PC.
The Wedge Touch Mouse. This is nice that it has no USB dongle, just Bluetooth. However, I’m not sure how comfortable that would be using.
Sculpt Touch Mouse. Sticking with the somewhat “normal” mouse design this has a four-way touch scroll strip. Very useful for navigating Metro on the desktop.
Images via The Windows Blog.