I've made btinput-terminal application to ovi store (free), with that app you can disable vkb, Ie you can start btinput-terminal, and then run:
"sleep 10; /home/user/live-f1" and then just go to settings menu and disable vkb before live-f1 starts.

Currently I dont have time to make custom deb package, as in ultimate package there would be custom qml settings page for user/pass and locked landscape, but I'm too busy with work to make it for a while.