All the big feedback from my prior submission[1] has been implemented. I'm trying to make sure the site is good enough before making the first big marketing push, because chat obviously has the chicken-and-egg problem in a big way. Right now I think it's ready, but would love to get some more eyes on it before proceeding.
[1] http://news.ycombinator.com/item?id=1447160 . I haven't been able to repro the Chrome sizing issue -- please let me know if you're able to.