MSI have announced an atom-based 10 inch win7 tablet and a 10 inch android tablet using the tegra 2 chipset.
http://www.engadget.com/2010/05/31/m...ndroid-tablet/
http://www.engadget.com/2010/05/31/m...dows-7-tablet/
Asus seem a bit more adventurous with their win 7 tablet being a 12 inch model that instead uses a culv and a claim of 10 hours battery life along with a 10 inch version that sounds more like it is running a newer version of win ce.
http://www.engadget.com/2010/05/31/a...ows-7-and-a-1/
They have also announced a digital notebook that sounds like it would be quite interesting for some people.
http://www.engadget.com/2010/05/31/asus-eee-tablet/