A picture of the actual machine has not been released yet. (probably at E3)
Here is a picture of the new controllers:
Some pretty basic things (still plays Blu-Rays, ext.) were announced that I won't list here, but can easily be found at Game Informer or Screen Rant's websites. (but not Sony's strangely enough)
Along with the announcement came a trailer for a third inFAMOUS game titled inFAMOUS: Second Son.
I've played a good chunk of the way through the first game and am planning to buy the second one when I finish. This looks like a very different game from the first two.