This looks mighty nice.
This looks very good. If this is the beta version the release version might be a contender. I've been hankering for a tablet but was not going to buy an apple product. Yeah, I know blah blah blah but I don't like them. They're too locked down and I don't want to encourage other makers to follow their model in that regard.
Here is another hands on demo which is a bit longer and more involved.
My fear is that like other Ubuntu releases the degree of knowledge required to effectively use the thing will be significant. Time will tell.