I spent probably too much time researching and testing different options, there are many great ones, I'm very much sold on this one, for this year anyway, function and great style.
New Trent IMP36w.
The most stable also using iPad 2 in portrait or landscape on my lap or wherever, and when at a table I can push the screen further away and use the keyboard while removed if I want.

http://www.amazon.com/New-Trent-IMP3.../dp/B005VVTU40