not quite sure why sony went ahead and did this, but their recent foray into digital rights management has given them a clear black eye. they put some obnoxious stuff onto your os if you bought one of their copy protected cds. this 'rootkit' stuff apparently creates some serious security holes in your system; and their first attempt to offer 'uninstall' actually makes things even worse.
sigh. they don't have the technological cool factor in their favor any more. they cannot afford to screw up so badly with samsung nipping at their heels.
i used to deal with sony quite a lot, and i had a lot of respect for their integrity and their technology savvy. that was back in the 1990-ish time-frame. looks like they have not been doing much innovation recently. dont quite know why.