I don't know what the deal is at other places, but everywhere I ride I feel zero animosity among kiters and windsurfers. I usually try to race with them and stuff. I knew most of them from when I use to windsurf (not well) a ways back. Many of them have become kiters (Randy and Raul possibly the first), but many are still dedicated solely to windsurfing.

I like the idea of getting the windsurfers and kiters together for a race. That would be fun. We had a couple join in on one of Matt's impromptu races.
I am moderately confident that Britt from NBWS would be interested and am sure Steve-O could get some windsurfers interested. I would just like to course race more period. I suck at it, but it's very fun.
All we need is a few guys and something to aim at. It doesn't need to be a big deal.