Yeah, I'm at the point of running Agisoft Photoscan under wine, no results yet. But of course I won't get the heat-map quality indicator, which is the bit I really like about your app!
Good luck, hope you manage to make it work! Thanks, that's the advantage of having it run real-time. Unfortunately, I don't think there is any other out-of-the-box solution right now that can give you this sort of feedback with a normal camera.