+1 to this. I've set up a few services of a similar nature, and a couple were worth enough to me to go to a further length and monetize, but only insofar as it

+1 to this. I've set up a few services of a similar nature, and a couple were worth enough to me to go to a further length and monetize, but only insofar as it paid my server bills and added a little on top for taxes and such. It feels great to hack on something like this, and not worry about billing integration and supporting paid customers at first.