In the not-particularly-near future, eBay's checkout process will become a simpler affair. The company announced today that it intends to stop supporting third-party checkout solutions on June 30th of next year. This seems like a wise move for several reasons. For starters, it will grant eBay more complete control over its site, and search boxes and Facebook widgets aside, it's usually wise for companies not to rely on others. Too many things can go wrong,