I have, and it's getting better constantly. You can see positive changes in the UI, speed, and virtually everything else on a weekly or fortnightly basis.

Exactly. Cr-48. You're using a very sub-par version of the final product.

http://www.ifixit.com/blog/blog/2011/06/08/samsung-series-5-...

Chrome on Ubuntu on the Cr48 is more usable the ChromeOS on the Cr48. IMHE. Also, reviewing your link: the specs don't seem much different, except maybe a shiny case and a better trackpad.