Glad to see some progress on the hardware front.
Donations to the opengauge project always welcome (plenty more stuff to monitor)
Glad to see usb too. The only tweak I would add is that having the buttons along the top right would be preferable, since it will make the menus and editor more intuitive, and reduce the width of the unit (hides less idiot lights in my car), and it would make pressing the key combinations easier.