My idea is for a login-free betsofbitcoin site, using a method similar to satoshidice for payouts. Once you pay in to a bet (either yes or no) then your address is on file for the site, so they can payout your winnings to the address. No logins or other account information is required. Payouts can be audited based on the public blockchain, like satoshidice.

This would enable frictionless easy betting. Much better!

Probably needs to be based outside the US.