is there any difference between the one from creative (besides price) and the psp one?
http://us.creative.com/products/product.asp?category=213&subcategory=&product=12204
Seems to me, other than slight physical design difference, the technical spec difference of the creative outputs 5v/2500mah and the Sony is 5v/2000mah. I don't believe the 500mah difference will cause the NJB3 to crash or anything. If you are concerned with this, buy the Creative Brand.
-Kevin