Microsoft co-founder and Chairman Bill Gates has cited disappointment with the company's performance in several areas, notably mobile devices. "There's a lot of things like cellphones where we didn't get out in the lead very early. ... We didn't miss cellphones, but the way we went about it didn't allow us to get the leadership. It's clearly a mistake," Gates said. But Gates backed CEO Steve Ballmer's performance, terming some of his achievements "amazing." One bright spot: An analyst's survey of corporate chief information officers found plenty of support for Microsoft products.