Hey, for starts I've been drinkin....
But I've been moaning around the house 1/2 drunk carrying my laptop around listening to my mp3'z I have on my PC via typical SMB sharing. I'm somewhat new to the UPnP shiza, but I think it would be easy to implement uPnP or even apache mp3 mod to a PSP app. I wish I had the time to code, then I would do it... but I think a pr0ject like this would eventally pay off (money wise) because I haven't heard of such a thing.
I mean, why walk around the house and have to hear your spouse B&tch at you, when you can stream (SMB'ly) your audio to your PSP and walk away..
Just a hunch,
any one proceed this project, contact me.