Hello, I have a quick question on cables. Does anybody have sync and charge retractable cables that they know work with the 3G? All this time I have been thinking a cable is a cable but it appears this isn't the case. My wife's retractable cable for her nano doesn't work with my phone but the cable included with the iPhone 3g works on both our devices. The whole apple accessory market is somewhat frustrating at the moment. Thanks.