Even if you have a webcam a chat is still useful to share links, etc that aren't code. I'm betting a lot of people would use comments in code as an ad-hoc chat.

Totally agree with you. Wanted to get this out of the door - otherwise I tend to keep adding "one more feature".

You've got something really great so far. I'd start charging immediately :)

Thank you! Mind if I emailed you to ask you some questions on that? :)

You are more than welcome to (email is my twitter handle in my profile at gmail). However, you should ask them here so everyone can benefit!

Seshcode has chat https://seshcode.com

Looks decent.

Would not use it out of principle that it forces social login.