Gizmodo
Those in Japan are going to get the goods from Sony very soon. Sony is launching a new network TV service for the PSP to showcase its capabilities. The service works through the PSP's Wi-Fi connection to grab content via the Sony Portable TV Network. Users will be able to download videos, movies, music videos, and more at about $3 a pop. The problem is that it's more like a rental service. The videos expire within 1 to 2 weeks and then are no longer viewable.
Sony launches Portable TV network for PSP [Mobile Whack]
Pricing and reviews for Sony PSP [Amazon]
