I haven’t really used Second Life that much, and I don’t really intend to, but there seems to have been a real-life conference the other day which ran in parallel to one in Second Life and it made me leave a comment on...
Joost is based on standards all the way and the application forms a single DOM
Henri’s HTML5 conformance checker generated some excitable debate about the inclusion of a normative (or even informative, if I remember properly) in the Atom spec