Well, it looks like Microsoft still has a bit more stuff in store for CES that didn't slip out ahead of its big keynote, with it now announcing its new Arc Keyboard that will exclusive to Best Buy (at least initially). Like its Arc Mouse, this one is slim and high on style, and relatively light on any extraneous features, although you will get a 2.4GHz wireless receiver that can be tucked away in the keyboard, and at least a few ex