I have a 30G Video Ipod, which has been fine for the last 2 years. I have recently updated itunes and it does not seem to be charging properly with either my VW ipod dock or my Onkyo hifi dock.

I have read the stories about the new NANO not charging from other non-apple docks. Are apple trying to get this working across the range as a backward compatible update on their products, or am I imagining this is possible in a big brother way?

I will be a bit wound up if I have to get a charger specially when I have forked out for a docks anyway...