I think I'm having the same problems as described above: it won't switch on, I get the orangle light blinking, and if I plug it in to my PC the red light comes on as if it's charging, but then goes blank again after a few minutes. I can see the internal storage, but the screen is blank. I've tried a soft reset, and sliding the power switch, and it doesn't help.
I don't have a wall charger, nor do I have one for a PSP. I do have one for my HTC TyTN II, not sure if I can use that one?
Last time I used it it was working fine, and I haven't touched it since then (i.e. I haven't dropped it or anything). It's only 2 months old
I can probably return it and get my money back, but I most likely won't be able to get a replacement (due to the way I imported it; I'm not in the US), which would be very disappointing.