UPDATE: Here is a video of me playing various PS3 games with the controller: http://www.youtube.com/watch?v=CaCyTalq750
So I picked up the DualShock 4 yesterday at my local Gamestop (Columbus, Ohio) and had some time to mess around with it.
I made an unboxing / impressions / close-ups video here: http://www.youtube.com/watch?v=rOneRRzcg0Q
Since then I've had some time to play using it on PC and on PS3. First off it isn't really plug and play on the PC. Some games it will work with okay, others you need to configure it or use a program to trick Windows into thinking it is an X360 controller.
On PS3 it mostly works other than motion controls. I played a bit of KillZone 3 (up until the first pointless motion control objective) and then some of 3D Dot Game Heroes.
While in the unboxing I thought the triggers felt nice, now I'm not so sure. The way your fingers lay across the L2/R2 buttons is quite different than the PS3's DualShock 3. On the DualShock 3 your finger tips mostly lay across the broader triggers.
On the PS4's DualShock 4 the triggers are a bit smaller and dip in concave. Your fingers naturally lie in this dip, but it causes your index finger to be further up, closer to the first knuckle, which causes you to have to use most of your finger to press the button instead of just tips. Basically you have to use the muscles in your index fingers, instead of just your finger tips.
I'm going to give it a few more days and try holding it a few different ways to see if it feels more comfortable, but I've never had an issue like this with any other controller in the past, they just seem to fall naturally into place. My index fingers hurt a bit right now, and I only played for maybe 2 hours tops...
If you have any questions or comments, I'll be glad to try to answer them. I do plan on trying it out on more games later today.
Also, I took some shots of me licking the DualShock 4 before Jessica Chobot could beat me to it. Those can be seen here: http://imgur.com/gallery/N3hLN
How accurate are the analog sticks when playing shooter games? Is it more precise than the 360 controller? (I only own a 360 at the moment.)
I'd say they feel about the same, if not a smidge tighter. They feel great.