All great view points, all valid opinions, but I stand by my belief that PD could be doing a lot more related to the community.
They could be, but they aren't, the main reason most games companies don't bother speaking to their communities is because anything they mistakenly say or word badly, they get a massive backlash for it.
For example, Harmonix regularly talks to its fanbase about its Rock Band franchise. Around the launch of RB1, they were quoted as saying that Nirvana's Nevermind album "may" be coming to the game at some point.
However, much later on, after it never came out, Harmonix got quite a bit of flak over it even though they had never officially announced it and I think it really hurt their links to some of the license holders of other music.
It works the same here, a PD representative could come on this forum and say "we might be getting close to securing Porsche's!" and although its not an official announcement, people will take it as such and become particularly enraged when it doesn't happen. This can have a negative effect on PD's reputation and might hurt what chances they did have of securing such licenses.
Same goes for revealing release dates, Harmonix have never revealed the release dates for the PAL launches of Rock Band - because it was EA's job to do that - and still get a lot bad backlash for that.
Also, even if we did have a PD or Sony rep here telling us new info, it wouldn't be any more than we already are getting, they would only release info that they are safe to reveal and that is confirmed. Usually we are informed about confirmed information through the general gaming media, so I don't see what else Polyphony can really tell us at this point, not even release dates.
I agree that sometimes its nice for developers to give us information and talk to us, but overall, its better off for the company to not get involved, ignore the whiners and get very little backlash than to get involved, say the wrong thing/say very little and get large amounts of backlash for "false promises".