A small team has started the project. We're currently working out what we need; you'll probably hear from us soon.
Javascript/XHTML/etc. experience
This in particular might be very useful.
Due to personal things, I don't have the time to lead or contribute -hugely- to this effort.
You mention a wiki and/or bug tracker. I am thinking that setting up and running one might distract the programmers, but may not take much time for a single person to manage. Something to think about if it turns out you don't have enough time.
I'm using workflowy to map out all my programming projects. I find it more useful than a wiki.
We've had considerable interest and uptake on the Less Wrong Study Hall, especially with informal timed Pomodoro sessions for everyone to synchronize on. Working together with a number of other visible faces, and your own face visible to them, does seem effective. Keeping the social chat to the 5 off minutes prevents this from turning into just another chatroom.
We've been using this Tinychat room, and implementing everything Pomodoro-related with manual typing. Is there anyone out there who's interested in taking this to the next level with some custom code, possibly via the Google Hangouts API (Javascript), so we can have the following nice features?
This doesn't "seem" very complicated from a programming perspective (yes, we all know about things that don't seem complicated). The Google Hangouts API (possibly OpenMeetings) seems like it should provide almost all of the basics already. But unless some particular programmer steps up to do it, it won't get done. If interested, comment below or email shannon.friedman@positivevector.com, and please mention your relevant Javascript experience.