To reduce the price of the iPhone, Apple has removed the peripheral and devices shipped with the first version of the mobile, as they did it in the past with the iPod. If you purchase the new Bluetooth iPhone headset, which is now cheaper, it does NOT contain the dock anymore. So the "bidouille" from Goulwen is most likely the best way to follow for most of us, to avoid buying an expensive piece of plastic.

via forum.hardmac