Will PS4 go for NVIDIA

People take away the bad lesson from the PS2 and PS3. The mistakes Sony made with both systems was to put their money worth in developing a brand new processor mostly on their own (the Emotion Engine in the PS2 and the Cell in the PS3) rather than simply turn out to ATI or NVIDIA well ahead of time and collaborate with them to offer the best possible processor they can provide. Both the EE and the Cell were outrageously expensive to develop, a nightmare to program for, and I�m sure we do think that the PS2 and PS3 would have been just as successful without them. Without the Cell, the PS3 could have probably launched with a price tag of around $499 for the premium model and come roaring out of the gate.
Project Denver would also be monstrous enough to decode HVDs at 4k resolution a.k.a film resolution video, which would suit for PS4. It makes a too much of sense for movie studios to use these HVDs to distribute their films to movie theater than the current hugely expensive spindles they use now. The more movie theaters that use these discs, the more the costs are slashed down and the more viable it becomes for the audience who eventually will become the consumers. Initially, people with projectors in their basements will need those too. Soon after, people with 4k resolution TVs (which will be quite common since that is the easiest way to do glassless 3D at 1080p) will also pen that down on their shopping list.