Apple Insider is reporting that they received a tip that iTunes 8 was released and then pulled tonight. Apparently the "download now" button appeared in the middle of the screen and a few lucky people were able to grab it. The button has since disappeared from the page. The people who did claim to grab it will not release details to avoid the force of Apple coming upon them. Lets hope someone lets us know so we can enjoy the rumors until Tuesday.
UPDATE: apparently this is a hoax says Gizmodo. The person who caught this picture only had iTunes 6 and was prompted for iTunes 7 to be downloaded.