Microsoft should sell a monitor....
I'm not even joking! :D
Everyone is talking about Surface Mini tablets and Surface Notebooks, but I'd also like to see a Surface monitor and docking station in the same design style as the Surface Pro (or Pro v2).
Microsoft already make great keyboards and mice that it could be paired with.
I know it's a very niche market, but I think it has a potential to grow with the right hardware, especially in business.
More importantly, Microsoft are struggling to convey the relatively complex capabilities of hybrid computers to the general public, and this happens to be one very compelling (for the right user) yet incredibly simple-to-understand way to showcase what a device like the Surface Pro is capable of.