As of the beginning of this month (April 2003), the Sony MDR-Q55SL (all three styles of that 'phone) is now officially available in the USA - and in the original "SL" form (with very short, remote-friendly 1-foot cord plus a longer 3-foot extension) rather than "LP" form (with a fixed 4- or 5-foot cord). This is unlike the MDR-Q22, which was first heard from as a Japanese-market "SL"-form model, is available in the USA in the "LP" version.
Speaking of the availability of these new Sony clip-ons, Circuit City carries all of them, and Best Buy carries only the MDR-Q22LP. The Q55SL/A.I.R. that I purchased today out of impulse, however, I purchased from my local Target discount department store - the same place where Steve999's favourite cheap headphone, the Philips SBC-HP170, is sold.
All I can say about the Q55SL/A.I.R. is that it delivers more bass than other recent 'stylish' Sony w.ears or Street Styles could ever produce. However, the sound quality out of the box is better suited to "Duh-m-basses" than to audio enthusiasts like me. (Note that this applies only to the A.I.R. version; the S.L.D. and L.Q.D. versions sound slightly different. This is due to the differences in the housing design for each of the three styles of the Q55SL's.)