so hey to everyone who i talked to about the USB audio out. After much research, I think i may have solved the age old dilemma of audio out. And i think i can do it for around $100. Apple, prepare to meet your down fall.
So here's what im thinking. G4 mini pc, powered by a portable phone charger (it runs from powered USB into the micro USB slot on the G4). The default screen on the G4 set to a specific music app (it may vary a bit depending on the files you use) . Then run USB out, and into your USB DAC of choice. Then, you can control your music via the included IR remote. Think a simplistic platform like the original iPod shuffles. Now i haven't yet attempted it; however, i have from reliable sources that it should work, at least in theory. I plan to try it out as soon as I can rustle up $100 or so.
Just thinking aloud here, but something like this could change the face of portable audio as we know it.