If you want an iPhone 5 but have a dock that you're not willing to consign to the gadget dustbin, you'll need to get hold of an adapter. Apple's official one has popped up on the Apple Store website, and will cost you £25. It won't be available until October, though.
With the iPhone 5, Apple got rid of the 30-pin connector that's been in-use for a decade. It has been replaced by something much more space-efficient, which Apple calls the Lightning connector, but it means you can't simply plug the iPhone 5 or new 2012 iPod touch into old speaker docks.
Apple has come with a solution, in the official Lightning to 30-pin Adapter. This little chunk of plastic costs £25 and will make new devices compatible with old accessories. However, Apple states on its site that not all will work, and video output is not supported. It's essentially a sheath that fits over your old 30-pin port, cast in the white plastic used in just about all Apple accessories. It won't exactly complement the design of something like the B&W Zeppelin, but it should at least get the thing working.
Apple's website lists the converter as compatible with the iPhone 5, 5th generation iPod touch and the 7th generation nano - that's every device that currently uses the new Lightning connector. The adapter is available to buy now from the online Apple Store, but it's currently showing as set to dispatch in October, when the next wave of iPods is set to arrive.
Other accessories in the new Apple line-up include a Lightning to microUSB adapter and the new EarPod headphones.