Well, this is kind of disappointing: Remember the Sonic Generation demo that is coming up on Xbox Live Arcade and Playstation Network? Well, of course you do! It will only be available until July 12 and after that, it will disappear. Not only from the online stores, no, the demo won’t work anymore for you either. To make things worse, PSN still isn’t up in Japan and on Xbox, you need a gold account or you’ll have to wait until June 30.