We reported already about lots of free video and ebook content for the Sony PSP (see list below). Apparently see media publishers a new promissing platform for their content.

Now a Punk band released their whole CD packaged for the Sony PSP. The Experiments from San Diego released their 3rd album also for the PSP. The CD can be downloaded on their site.

We also got word from a new magazine published for the Sony PSP called PSPMag. The magazine style publication is delivered in the form of jpgs and music/video for readers to playback on their Sony PSP. More details on their site.
As reported UMD movies are already a big hit for the Sony PSP.

Sony PSP Content:
Sony's PlanetMG offer Sony PSP Downloads
Sony PSP Beatbox Tutorials
Heavy Releases Sony PSP Videos
Atom Films now on Sony PSP
ABC News on Sony PSP