USB Fever has released the US$29.99 Universal Cradle for iPhone/iPod with USB Hub (http://www.usbfever.com/index_eproduct_view.php?products_id=2019).
As you might guess from the name, it’s a cradle that doubles as a three-port USB hub. The Universal Cradle is deigned for connecting iPhones and iPods to a computer while they’re still wearing their cases.