In what looks like a preventive measure in reaction to the Megaupload shutdown, FileSonic has disabled all file sharing capabilities and is now nothing more than a personal storage solution. It looks like the Feds' tactic of going after the big fish in Megaupload is beginning to scare other file sharing sites into shutting down.
Along with FileSonic, Uploaded.to seems to have shuttered its services to the US as well. If committing suicide (or honorably dying like a samurai depending on your perspective) is the trend of these file sharing sites, the shutdown of Megaupload will always be remembered as a dark, dark day for the Internet. Sad. We'll probably see how other file sharing sites like RapidShare, MediaFire react to this news soon. [Filesonic, Thanks for the tip Affan!]