In what looks like a desperate 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 FBI's scare tactic of going after the big fish in Megaupload is beginning to scare other file-sharing sites.
Along with FileSonic, Uploaded.to seems to have shuttered its services to the US as well. If committing suicide (or honourably 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. We'll probably see how other file-sharing sites like RapidShare, MediaFire react to this news soon. [Filesonic -- Thanks Affan!]