It's too slow and they broke something since the October 1 beta 4. I've built the beta 4 and the beta 5 and have verified that double-tap zooming is broken. Beta 5 has been broken since October. Cruise Wikipedia, it won't take long for you to see what I mean. Also, regardless of the beta, if you zoom into a center or right column and then attempt to page (spacebar on the n810 for instance), the browser slams against the left margin. This is relatively simple math, why can't they get this right? Combine that with the slowness and the crappy tab implementation and you get FAIL.

My home grown multi-tab Python webkit wrapper blows this piece of sh*t away for tablet browsing.