Welcome to my nightmare, and yes mine are sometimes unresponsive, I will be picking up the 2k for trigger intensive games or hold out for a 3k if it ever makes it that far.
I see new images, but i'm still hesitant about the Vita 2000. I mean, the og model shell use the same material as some high end smartphone, that thing that make it look like crystal. You look at it and you cannot help but think it's soooo good.
With the new model, I don't have that feeling. It's just a normal plastic. Some colors look sexy, but the black seems like a cheap knock-off.
Still, if I see that my Vita is in a bad shape when the 2000 is released over here (I'm treating it with as much love as I can, though) i'll went to Gamestop and trade it in. I love my OLED Vita, but there are some dudes that scare me with that burn-in bullshit.