I think the HP Slate w/ Windows 7 was cancelled:
http://techcrunch.com/2010/04/29/hew...ablet-project/
I would like to see an iPad form-factored tablet (so no keyboard or other added bulk... just a screen) with a full blown os, but not running Windows. I think the mass market would still prefer the simplicity of a mobile os, but techies like me would love an iPad-like device running Linux