[cgmv123]

You need a keyboard (or at least the ability to press the F1, Enter and Spacebar keys) for safety reasons. Enter and Spacebar aren't used during in FMS mode, and F1 is just reinitialize joysticks, but you'll need all 3 when the driver station isn't in FMS mode. This doesn't necessarily preclude the use of a touchscreen; you just can't use a computer that doesn't have a physical keyboard.