I too would like to update my Sat. Nav. system. I've just spoken with Audi Customer Services in Milton Keynes about upgrading my '55' Avant. He told me any dealer would be able to do this but that the upgrades only came out every 18 months or so. I'd say mine is from 2004 at best.
Also, I'd quite like one that showed pubs as well as restaurants, anyone know if it's possible to get such a thing?
Finally, rather sadly, I'd like to see McDonalds on there too. Only because they have BT Openzone in nearly all their fast-food canteens now (not Hedge End off M27 though).