We'll add the Dynon Support Program to the EFIS-D100 section of our website shortly. In the mean, it's actually the exact same exact Support Program that is used with the EFIS-D10A. You can find it under the EFIS-D10A downloads section of the website. Note that the operating program (firmware) for the EFIS-D10A is NOT compatible with the EFIS-D100. This is a non-issue though as the EFIS-D100 does not yet have any firmware updates available for it yet.
We do not disclose our exact EFIS architecture, other than to say that the roll rate sensors and accelerometers are of the solid state MEMS variety. We have an algorithm that accounts and corrects for those sensors' inherhently drifty behavior. You should not perceive any drift or wander in normal use.