It works in 2017 IS300H no premium nav only navibox. It's 1.1 mirrorlink so only some specific apps works but you can hack in order to get more apps working rooting a Samsung S5, S6,S7, Alpha. I can help you if needed.
Any app can be displayed but I have problems with inputs as Lexus screen is not touch so, for example if you want to use google maps you have to start it before plugging in usb port.
No problem when car moving, it works when you quit pedal break and start moving.