Picked up my new ceramic white PSP-2000 today. Almost went for black, but the plastic is the same as the PS3's and just ripe for smudges galore. White hides this quite well.
The system may not look very different in pictures, but once you get your hands on a unit, you can tell the difference immediately. The system is thinner and a little more ergonomic. The buttons, d-pad, and even the analog nub feel much, much better now. And the new PSP is also incredibly lightweight-- it's amazing how much lighter Sony was able to make this system than before. The difference is like night and day.
I bought D-Terminal (Component) cables to go along with the system. Everything displays in 480p, and the UMD movie I tried, Ocean's 11, looked about DVD quality on my Bravia. Games don't run in full screen, as we all have heard, but look incredibly sharp on the big screen. The sacrifice is in the games' low-quality textures, jaggies, and the like being far more noticeable. 2D games look fantastic and this isn't an issue, and most of the 3D games I've tried so far look like early PS2 titles. Tekken Dark Resurrection reminded me of a Playstation One Tekken game. If it was running at 480p with 3D backgrounds and better character models, that is. Ridge Racers 2 looked quite good; I saw details in the background popping out that I have never seen before. Metal Gear Portable Ops also looked great, as did Ultimate Ghouls N Ghosts Kai. I'm going to be spending a lot of time messing around with various games over the next few days and taking some pics if anyone wants them.
Also, the system is indeed HACKABLE. I have custom firmware running on the system, and the Neo-Geo and CPS2 emulators work perfectly well on a TV screen. The emulators run in framed windows just like the PSP games though.