This article doesn't say it, but "developers will dish up 1.9 percent to 2.9 percent of the sale, plus 30 cents based on PayPal's tiered pricing structure for e

This article doesn't say it, but "developers will dish up 1.9 percent to 2.9 percent of the sale, plus 30 cents based on PayPal's tiered pricing structure for e-commerce, or a 5 percent plus 5 cents per each transaction fee for micropayments." (source: http://www.cnet.com/8301-19736_1-20005327-251.html http://www.cnet.com/8301-19736_1-20005327-251.html)