I don't think you understand game development as much as you put forth.
GT HD had a very minimal structure, but it did have a net connection. It had to be written for the game. Though basic, the game had to be tested offline and online. And there was a drift judging algorithm. Replay sharing. From videos of its development, physics were tweaked until release. You act like every element of it was a one day doddle.
Prologue was released almost three years ago. It most likely used a concept of GT5's online system, but something this involved undoubtedly required the creation of a pretty serious online structure and backbone, even without an involved lobby system, and written for the game since GT5 was still much in development. They evidently tested the online system alone in Japan for more than a month, and it still had issues needing a patch, such as crashing Prologue on disconnect from the server on overseas links. More net links were made for th game's features which didn't exist in GT HD. The game was polished a great deal, almost as much as GT5, since this was going to be an early look at their flagship.
GT PSP was a headache for everyone at Polyphony, and once again, your passing remarks about it reveal that you don't understand what was involved. They basically took GT4, made it even larger than the 5-6 gigabytes it took up on a dual layer DVD, and squeezed this all down to fit into one gig of file size. We don't know what the original total size was. The code had to be massively compressed also. And work. And work well. You write a massive program and reduce it by 66% or more, and get it to function the same sometime. I'll spot you one by not requiring lifelike physics.
As for my political rant, I suppose that ignorance really is bliss. But be midful that Greece is in a shambles, bankrupt and torn by violent rioting. This is beginning to smolder increasingly across Europe. And America can only brag that we suck less than the rest of the world, but some of our leaders want to fix that too. The sad thing is that most of it is because people refuse to let go of their "free lunches" handed out by the government. "Free lunches" that end up being excessively expensive, such as month long paid vacations, and US auto workers who get paid whether they work or are laid off.
Mark my words, trouble is coming, and much worse than 10% unemployment...
