MCE remotes work with Win8. They usually include some mouse functions but a real mouse is much easier to use. A wireless keyboard with mouse pad may be a better bet. Some are about the size of a remote.
Intel computer on a stick... Reminds me of an Android stick but for Win8 and Linux. It has some interesting potential for use as an HTPC. Maybe OpenELEC will run on it. I'm just wondering what the price point is. If it's mush more than Android sticks, it will miss the market. Knowing Intel, it will be overpriced like their NUC devices.