The Surface Pro will actually create an uptick in Windows 8 sales. Also, you won't see corporate spending increase until the second quarter. There was too much economic uncertainty that fade by Summer. Corporations still aren't interested in Windows 8 for a corporate rollout, but the use of Windows 8 devices, especially Surface Pro tablets will. Once business minded people get their hands on the Surface Pro, enthusiasm for Windows 8 will quickly increase.
As derided as Windows 8 is, the Surface Pro packs an Ultralite laptop into the size of a tablet giving corporate users a compact device that allows them to have an easy to use tablet while also featuring a powerful computer capable of doing any business tasks necessary.