Rogue Amoeba does a lot of neat things that, honestly, should have been built into OSX and other Apple products from day one, such as SoundFlower (an audio router using fake devices, inherited the stewardship from Cycling 74) and LineIn (just plays an input to an output with no magic).<p>AirFoil is also really neat, but I wish there was an AirFoil to AirFoil zero latency PCM mode that can plug into SoundFlower and just send my audio to my Windows desktop with no otherwise magic... AirFoil via the AirPlay protocol (or <i>anything</i> via the AirPlay protocol, even an Apple product to any other Apple product) has at least two seconds of lag, and also wastes time by encoding it (and is probably the source of the latency). Literally, the latency is the only thing preventing me from adopting the product.