That stuff on psphacker makes good reading. Some people did corrupt the USB stick, or their USB port died, but most seem to have got it worked out. You've got 5 seconds to swap, so there's no need to rush. The funny thing was, as soon as it was announced, Sony brought out 1.52 to counter it. One person gave a method of getting it working on 1.51, but it may have been a fake. Sony's attitude puzzles me. They say it's to stop piracy, but if a pirate can one day perfectly duplicate the UMD then it's gonna work anyway. All it does it make it difficult to homebrew, which seems to indicate that Sony wants to dictate what YOU do with YOUR psp, which SUX.