I prefer my computer's music library manager to the PS3's interface, but my laptop's speakers are...well, they're laptop speakers . My TV, OTOH is connected to better speakers. I know I can connect them with an audio cable, but for a laptop, it would be much more convenient (even if, perhaps, computational/energy overkill ) to pipe my computer's audio output buffer to the PS3 through the wireless network.
So it would be great if PMS exposed a special "file" to the PS3 which would just simply stream over the computer's audio output. I know it's possible to capture the computer's audio output because audio editing programs like Audacity are able to do it.