Hi, we have just created
http://seriousbets.com, a website where you can bet on real life events with btc. It's completely anonymous, you don't need to create any kind of account, login with FB, etc. You just leave your withdrawal address and the system generates another address for your bet. Once we receive a callback from the blockchain API your bet is confirmed.
We are starting right now, but we have already tested this system with some users on
http://moonbets.com (yes, betting with dogecoin) and it worked quite well.
Any suggestions / opinions are welcome.
