[gpetilli]

The September specs for the roboRIO showed that it included an accelerometer but I don't believe it included a gyro. They may have snuck it in when I was not looking, but one reason the gyro may not work is that you need to physically add one.

Keep in mind that a gyro measures the rotation about the point where the sensor is located, so putting a gyro inside the roboRIO may be overly restrictive in that you would want to locate it at the center of rotation of the robot. A remote gyro makes more sense to me.