I own one of these. It has an IR receiver of it's own and won't use the receiver of other B&O systems (so changing tracks in a link room is not possible). If you do not operate it out of a link room, I can fully recommend it.
 

Michael.

I spent a while looking at these and ended up getting the Onkyo dock as it has a video output to your TV and allows you to see and select albums, playlists etc. on the TV Screen making navigation much easier - they're about £70 - but doesn't work with the B&O Remote - so bought a Lintronic Converter which converts the commands and has the advantage that you can extend the system to operate in different rooms - I can control and see on the TV in the kitchen the iPod and listen to the sound through Beolink Active. Happy to supply details or take some pictures of it in action (once I've tidied up the wiring this weekend!) - I now practically use it all the time and anyone else who visits with an iPod can just plug it in. The added advantage of the Lintronic box is that you can use it to program other devices such as DVD's and Satellite. So my living room has full control of everything including the iPod from one Beo4.

There´s also Ridax´s solution. Ridax was a member (and technical advisor) on the old forum. Haven´t seen him on this one.

Ridax iPod dock.

Ridax iPod dock.