According to a report from Bloomberg on May 26th, Windows 8 is going to be tested and demonstrated on a Tablet PC running on a Nvidia Tegra Chip which is outdated in a way compared to most smartphones and tablets. Although it is running on an older chip it will give the press something to salivate on until more information about Windows 8 is released. Most likely Microsoft will stick to what they have done right with Windows 7 and play it somewhat safe.

Right now Windows has only been giving us and other consumers a little bit of information through their Windows 8 Beta Site, which currently only has a few posts. The newest of which has told us to keep away from any Windows 8 torrents, as they are not real and can't possibly be real.
Hopefully after the new Operating System is demonstrated on a tablet, we will be able to see it used on a PC. Until then though make sure to check back for more information on Windows and its upcoming OS.