Organizes JS GUI code in MVC-ish way:
Show backbone code
Let's me write applications cleanly I never would have tried or gotten very far with before (if Spolsky hitting the high notes is about the team and the libraries they use or make)
UnderscoreMatchersForJasmine? QUnit matchers or something?
Breakout when a player joins split the bumper when a player leaves make the bumpers bigger set a max number of players share state between players?