It looks like Sony has finally delivered
on their promise to allow PSP users view content on their PS3's when they are away from home. The newly released 3.5 firmware adds this capability plus some tweaks to the RSS reader.
It's nice to see Sony finally deliver on this promise as it really adds a lot of value to owning a PSP and a PS3. No word if the media has to be stored on the PS3 or if you can use the PSP to view media that is streamed to the PS3 from your PC but I'm guessing it has to be local.