Last June, Heyzap, the Y Combinator-funded startup that builds products around Flash gaming, launched a new micro-transaction platform for Flash that looked to offer developers a way to monetize their highly viral but difficult-to-monetize games. The platform is off to an encouraging start, and today Heyzap is taking it one step further with a new payout system that offers publishers a chance to take 15% of the proceeds. As a special promotion, the site will offer 20% of in-game proceeds to the first 1,000 publishers to sign up for the program through this link.Heyzap's gaming widget allows publishers to embed thousands of games in one fell swoop, and is already being used by over 35,000 publishers (you can see an example game that integrates payments below).