IANAL but i think Sony would have had to *first* fully accept the terms initially, and then a brick (or many other delivery mechanisms used to convey "notice") with updated terms i guess would be weirdly acceptable...however, other laws would be broken since its, you know, property damage. But what a story that would be! lol :-)

I hate all these TOS that always favor a company...but what if alot of society started hurling bricks back at tech companies in a sort of retaliation...not unlike Luddites damaging ye old machines?