FWIW, and IIRC, Wake on WiFi only works on MacBooks starting with the Unibody MacBooks. And it's apparently a hardware issue, as they've pretty much stated outright that the prior MacBooks won't get it. I don't know about desktop Macs, but those are far more likely to be wired. And, yes, streaming from WiFi to WiFi is not ideal, but it's probably also not uncommon.