I got a chance to handle an 11-inch model yesterday at the Apple Store. I don't have a strong need/desire for an iPad because my 17-inch MBP and iPhone 4 cover my needs nicely. But I can tell you this:
If I do develop the need/desire for a mid-size unit, it won't be for an iPad, it will be for a 11-inch MacBook Air.
It was fantastically light, well built, and it was hard for me to keep my credit card in my wallet. The iPad just left consideration all together for me.