Rich Zygler asks in one of his recent blog posts, if Microsoft purchasing a 240 million dollar chunk of Facebook is a good thing for the language it's written in - PHP.

Microsoft is buying a piece of Facebook. What do we all think this means for PHP since Facebook is one of the "web 2.0" leaders built on PHP? The way I see it, [there] are [six] options.

Among the possible outcomes he lists are things like Microsoft rewriting the site, Facebook continues as it is or (next to impossible) Microsoft sees the error of its ways and fully embraces open source.