Thanks! I agree it's actually not too difficult to write, although there are a few complications when making it a service for many (timezones was the main one).

Thanks! I agree it's actually not too difficult to write, although there are a few complications when making it a service for many (timezones was the main one). I built it to scratch my own itch and also to put into practice all my learning of lean startup ideas, development and user experience. It was a real challenge to hold back and launch with a minimal yet complete (in the sense of being useful) feature-set. Now I'm trying to scale it up, I would love to ease off the amount of time I need to spend on contract work given time. Really appreciate the support.