Not quite an FF rumor but for the upcoming console,ps3. The rumor goes that once you play a game on one ps3 console, other ps3 consoles will reconise that the game was used and wont let you play on them. This is knowen as DRM(Digital Rights Manageme).

False.
This rumor will never come to pass.
http://www.ps3portal.com/?view=article&article=209