Similar to this: SiK, Inc. :: imp So that I can just have one thing to plug into my phone while in the car. I've seen this: HTC Multifunction Audio Adapter for Dell Aero / HTC Hero (Unlocked), Hero, Droid Eris / T-Mobile myTouch Fender, T-Mobile myTouch 3G - Android Audio Adapters - Phandroid Store But apparently it doesn't work for Thunderbolt? Which seems weird. Anybody seen something like this or know if the HTC one is actually compatible? Thanks!