I know a few of the guys at Vectornav and I talked with James earlier today. After the first of the year they should have their current VN-100 running at 500 hertz and no special code changes would be needed in the VN-100 itself only the code support from Bill to talk to it.
Need to come up with 10 interested party's and talk to them after the first of the year. The price he suggested was 10 for the price of 9. Get's a little better at 100 units but still more than a complete AQ6.