"A German company called Helios thinks so. It just released a customized PS3 version of Linux that is powerful enough to run the Helios UB enterprise server, formerly reserved for the likes of the IBM Blade Server and Xserve. It achieved this feat using a stripped-down version of Yellow Dog Linux that provides extremely low overhead while still offering things like Java 1.5 and enhanced AppleTalk.
So you can now pick up an enterprise server for cheap which is great news for small enterprises (is there even such a thing?) but not good news for Sony.
Remember Sony are making quite a considerable loss on every console sold which is perfectly normal as these companies make their money back from the sales of games. But if the PS3 is being used as a server I somehow don't expect the companies to be purchasing that many games."