Yoshi, it looks like your program is working very well as it is. I saw the videos on your site and I'd say, even if the motion capture was limited (have to manually track some trackers when they move fast), it would still be an awesome piece of software to have. I'm really looking forward to seeing it released, if you choose to do so. You could release it under a beta program and then move to 1.0. I'd be very interested in beta testing this program or buying a copy...I'd get the cameras from optitrack tomorrow if your software was available for purchase or beta!