I’ve done some extensive searching and managed to find two UK retailers that stock iTrips. The first one is Alta Technology, and they have stock of iTrips for 1st and 2nd generation iPods. The iTrip for new 3rd generation iPods are not yet shipping. Join the email list to be notified. The second retailer is Everything iPod UK, and they have stock of iTrip for older iPods for £40. The new iTrip (albeit at £43) for new 3rd generation iPods are not yet shipping. Join the email list to be notified. Don’t forget the iTrip is illegal in the UK due to the UK Wireless Telegraphy Act of 1949. You can own one, but you can’t use it.
iTrips in the UK