I would pay big bucks to upgrade if Lexus would open up their nav system so it would be operational while in motion. I hate to say how dissapointed I am with the Lexus navigation compaired to the navigation in my Acura. I'm so spoiled not to mention how hard it is to go backwards in technology. The Lexus voice recognition is lacking as well and it's slow, too.Now iff 11.1 would unlock the system so you could use it when the car was in motion if you say "I Agree" to the dangers. Like Honda, then it would be worth the upgrade.