Sorry if this has been posted before, but I only recently found out.
Sega have been working on 'Project Needlemouse' and it's recently been revealed that this will be the first episode in a new series of 'Sonic 4' which is going to be a 2D sidescroller carrying on from the story of Sonic 3 / Sonic & Knuckles.
See official link below, I don't know about anyone else - but I can't wait.
http://www.sega.com/sonic4/us/index.html
This isn't PS3 specific - it's also available on Wii/Xbox 360.
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