Is it possible to play with MY save somehow on a friends PS3?
Can I create a user on my friends PS3, login with my PSN account and the load the save?
Is THEN possible to delete the user so it's once again only my friends user account left?
If you want to use your game save on a different PS3, you need to create a new user (all the way on the left of the xmb), and then when you sign up for PSN, just choose "use existing" (or something like that) instead of "create new user." Once your link your PSN ID to that PS3, it will allow you to transfer over your SAVEDATA.
