J'ulise the PSP since its release in September 2005 and I think it's an excellent tool for musicians. That is, one can put his songs in MP3 or WMA for work but also working on videos.
Pocesseurs happy for a WiFi Internet connection is really ideal because you can directly go to sites partition or even download MP3, WMA or MPEG4 video. Pity it is that we can not put any other video format (this requires going through his PC or MAC to convert)
When will educational videos in UMD format (format disk in the PSP)?