I really like the Neon UI concept. I mainly use tablet/touch on both portable and desk systems and find it to be the most touch friendly browser UI available so far (since Metro IE on Surface RT!). A small issue is that it is difficult to close a tab bubble without opening the tab. A mouse hover on the bubble brings up the 'x' to close the tab, I cannot replicate this using touch. This is a small issue but believe that if you enhance the touch UI it will corner the growing (I hope) Windows tablet market.