As the title suggests, I'm really digging the prototype images of the PS4 controller and here's why.
-Disclaimer: Obviously this is all based off of the prototype imagery, which I'm aware are subject to change. However I just want to give my two cents on the assumption that the final product will be pretty similar if not exactly the same.-
First and foremost, the "screen" on the control apparently is a touch panel as oppose to an actual image screen. I'm very happy about this because it is a far more unique approach than SIXAXIS and Move (though reminiscent of the rear touch panel on Sony's own Playstation Vita), and could make for some very interesting functionality. This can also lead to unique game experiences separate from anything Ninendo does with the Wii U or Microsoft does with the SmartGlass.
Secondly, I appreciate the changes made to both the D-pad and the control sticks. The D-Pad looks inspired by the Vita's as well, but upped in size. This reminds me of the type of D-Pad Nintendo often incorporates into their controllers which, to me, have always been very comfortable and effective. As for the sticks, the indentations on the tops seem like a nice and more comfortable upgrade from the already well designed Dualshock control sticks.
Finally, while I have not seen any pictures of it, I've heard the "triggers" for R2/L2 will be fixed and made rendered less awkward.
The Ps4's announcement is apparently not far off, and there is a lot of anticipation. But if we're analyzing the controller along, I must say, I really want to hold this controller in my hands and see what it feels like. All I know is that it, like the console itself, shows nothing but promise.