UPDATE: It's official! Microsoft has put out a press release with the prices for the upcoming surface tablet. It is indeed $499 for a 32GB model, $599 for a 32GB model with black Touch Cover keyboard, and $699 for a 62GB model with black Touch Cover keyboard. If you want a colored Touch Cover keyboard, you'll have to pay $119.99. The bulkier Type Cover keyboard -- similar to the Touch Cover, but with keys that move and can depressed like on a traditional keyboard, will cost $129.99.
A limited number of Surface tablets will go on pre-order sale starting at 12PM ET at Surface.com.