Originally premiered last year but only just beginning to become available in the United States, Philips' Fidelio SoundSphere DS9800W ($800) is amongst the most expensive speaker systems to incorporate Apple's wireless streaming standard AirPlay -- and also the boldest industrial design yet leveraged to justify a premium price. Unlike most of its "all-in-one" brethren, SoundSphere consists of two cannon-shaped wood-cabineted speakers, finished in…