I have just started using Orb on my pc, and I have to say that it is one of the most useful programs that I have ever used. For those that don't know what it is, go to www.orb.com. Basically it lets you view pictures, music, videos, recorded tv, live tv and record tv stored on your pc remotely anywhere that you have an internet connection and a media player. I use it on my laptop and on my phone to watch movies stored on my home pc.
I think this would be the ultimate homebrew to have on the PSP. You wouldn't need any extra storage, you could keep everything at home on your desktop. You can play any type of video and music file, as long as your home PC has the right codec. You wouldn't need a tv tuner, it would stream it directly to your psp. All the homebrew prog would need is an internet connection, a way to view your Orb homepage and a media player capable of playing streaming video (I know this isn't very easy). If we had this we would not need seperate programs for playing music, movies and tv, and could use our mem sticks for games and other homebrew.
I am not skilled in programming at all, but would contribute financially to anyone who could make this happen. This really could be an extremely useful homebrew app. Let me know if you guys think that it is actually a possibility to take advantage of this technology on the PSP.