As per CNet’s news.com post, Slide Inc, purveyor of useless Facebook fluff applications, has had a security breach and the “Top Friends” application has had its API key and listing pulled from the site. With one fell swoop, the MySpacization of Scary Stalkerbook was paused.
This is just a reminder that the developers of any Facebook application have full access to your profile. Privacy controls do not apply and any information that an app pulls is supposed to only be used for caching and removed within 24 hours. This was obviously not the case with Top Friends. By the way, if you have to provide additional profile information for a third-party application, they own that data and can use it in any way they see fit.
Of course, anyone reading this site will probably be well-informed about how applications work anyway – so you can instead gloat in glee at the fact that an overvalued startup with no useful product got slammed with the banhammer.