So things are looking more and more promising each day for the PS4, so many exciting feature that were announced brought on a very positive feedback from consumers and developers. Most game developers are boasting about how easy and fun the machine is to make games and is incredible and almost in "another world" for developing according to some companies. There has still yet to be the final list of all features in the PS4.
Price is looking to be around the affordable range (I'd say around $399 to $449) its been about 7 years we've been saving up for quite some time for this gen lol. What it's capable of in terms of graphics is near photorealism and this is just based off the first generation of games (which was very limited to what the machine could actually do), the next generation of games will look even better.
Sony's been waiting for their big ticket item for quite some time and the PS4 is going to be that machine. Along with the Xperia Z this will kickstart Sony into some much needed profit for the company. They're listening to the consumers and delivering what we want, what more could be ask for?
Edit: Forgot my prediction, right I would say the PS4 will cross the 100 million point, and even approaching the PS2 LTD numbers.