http://showhnkarma.meteor.com/
http://bootstrap3themes.meteor.com/
http://gmailunreplieds.meteor.com/
I built the first because I believe individual efforts of creation should be more highly rewarded on hacker news.
The second, because bootstrap is everywhere - and I think it should be easier for people who build things in bootstrap to make their site look different, and stay with the trends!
The last, because I don't want to miss opportunities in my email :)
How does the app "authenticate" though? All I can see at the moment is a Docs form. I'm guessing you're taking the MVP route :)
I wouldn't be too comfortable giving out access to all my email to a 3rd party to be honest. An extension might work better, though even that might be too "risky" for some people.
The bootstrap one I don't quite understand. Who exactly are you targeting with it? Individual websites with bootstrap that want to switch their look up often?
The unreplied project I signed up for. It seems like a good idea and if I'm sending lots of emails in the future for marketing coverage I could see the benefit of a good reminder system for follow ups.