New Japanese PSP Firmware
Sony has once again update the firmware of their love or hate portable console in Japan. A US version of it should arrive in a few days.
This latest version will allow you to download demos from the internet. Currently only the LocoRoco and Kazuo (Sudoku) demos are available, though there should be plenty of them coming soon enough.
Once again, please remember that if you update your firmware, you will lose *all* ability to play homebrew and there is no way to downgrade the console at the moment.