Surface is launching on (or near) October 26, according to a recent Securities and Exchange Commission filing. "The next version of our operating system, Windows 8, will be generally available on October 26, 2012. At that time, we will begin selling the Surface, a series of Microsoft-designed and manufactured hardware devices," the report reads.
The Surface launches in two flavors: Surface for Windows RT and Surface for Windows 8 Pro, the latter carrying beefier specs. It's unclear if both will launch simultaneously, and no pricing has been set on the two varieties of Surface. At least one game will be available at launch – Skulls of the Shogun – with others expected alongside it.