I just tried this for fun, but it didn't work (page not found), but when I
downloaded from Steam, it gave "free" 30 days play time on Sony which
gets activated on new accounts there. So if you start a new account with
Sony, and it's activated, they don't take any funds from your account until
after the free 30 days. (your choice if you want to cancel before that).
So once you have the Steam download backed up on disk, you can always
patch in to live and get all the updated files you need. Your entitled to the
updates with your account
