Personally, I think Porsche is doing themselves a huge disservice. It was pointed out in
this article (Thanks to 05XR8 for finding it.) that despite EA's control, Porsche still have power over what can be done with their brand.
As a youngster, Porsche was the make of car that I thought of when I thought of fast cars. Like many other yet-to-be-shattered-by-the-reality-of-money boys, I told myself that the first car I owned was going to be a Porsche. These days, five main iterations of Gran Turismo later, I don't even consider Porsche. A large part of that would be due to the fact that Gran Turismo is the driving game I play, and Porsche is not in it. Bad luck to Porsche. This is what happens when you make such decisions.
In amongst the talk of tuners and manufacturers and how RUF has made it into Gran Turismo but not other Porsche developers, how certain are we on the suggestion in this thread that tuners have no licensing rights? I wish we had a trademark lawyer to (freely) chip in with an opinion on the topic. The same goes for competition law and EA's decision to allow the use of Porsche for Forza but not PD. Although we don't know the details of negotiations, it would still be interesting in a hypothetical sense.