I'm going on holiday next month and both my handhelds batteries die after a couple of hours of gaming. I've bought replacement iPod batteries before and they're always terrible knock-offs, and from what I've seen it's a similar situation with the DS and PSP. Amazon is full of them with fake reviews giving them perfect scores, so they're a no-go! So who do you trust? I'd rather not buy a new DS or PSP since their respective successors could be out this year.