When Sirius Xm's iPhone app was revealed, the first question on everyone's minds who used it was: How am I going to be able to do this and drive at the same time? The buttons were tiny and there was LOTS of information on the screen.
Well, on November 2, 2009, the XM SkyDock was announced. According to the press release, the XM SkyDock is "the first satellite radio controlled by an iPod Touch or the iPhone."
You can pick up one of these babies for about $120 at any BestBuy, Radio Shack, the Apple store, and of course, independent and online retailers.
Looking at this gadget, for you satellite radio subscribers, it looks like you've got pretty much everything you need with Sirius XM's PowerConnect technology (works through your vehicle's radio) and an easily downloadable free application on the Appstore.