[quote name='etcrane']How exactly would rental copies work then?
I can see only being able to use the PC copy once obviously, but I don't see the PS3 copy being forced to link to one PS3/Steam account.[/QUOTE]
[quote name='Salamando3000']While the likely scenario (voucher in game, need to use voucher to link up a PSN account to a Steam account), it still leaves two big questions.
How functional will the PS3 version be without the voucher....fully functional, some features locked out, not functional at all...
What's to prevent a person from linking up their PSN account to someone else's Steam account.[/QUOTE]
I can only logically assume the same way EA sports games work with rental copies. They simply take out the voucher code for EA online passes.
The PS3 version of Portal 2 will be intact and fully playable without the voucher code for the Steam/PC version. Remember people, the Steam/PC free version is simply a free bonus to those that buy the PS3 version. The Steam code will not be required to play the PS3 version is any capacity.
The code is only required if you want to have a free download of the Steam/PC version. But only limited to the purchaser of the PS3 version to prevent people from obtaining a totally free copy or buying each version on the cheap on release (should people think they can simply split the costs of the PS3 version, and one person take the code for the "free" Steam version).
It doesn't work that way.
In more simple terms. You buy the PS3 version, and your bonus is the Steam version as well...for you and you only --as the only way to get it is to link your PSN account to your Steam account.