That is correct. I am one of the testers (for the 08/09 years) but because I am in Montana and not local to them on the East Coast, connecting with them to do changes and updates and getting info from the Canbus has been challenging. They were able to locate one locally that they will have access to in Oct. The big issue is the 08-09s are completely different than the 10-11s. So they will be two different units.It turns out that the 2009 to 2011 LX570 unit isn't officially released. They potentially have a vehicle to use for development in October.
As I said before, I'm still an extremely happy customer. I'll keep pressing the voice button on the steering wheel after shifting from reverse to drive; it's a minor step that I've lived with for a year.
I am surprised you are having issues with the screen returning after going into reverse. That is the only camera function that currently works. We are working on getting the front and side cameras functioning as well as the screen returning after the parking sensors are triggered.