This is a really great video, am building a rig to use on my mothership (34 foot offshore ketch), would also work at slow speed with the sib..
SUperb, truly excellent, you really couldnt get shots like this without a helicoptor !
Am using a simple wifi miniature cam for the first test, looking to build a delta design kite (check out http://www.deltas.freeserve.co.uk/home.html
Dan's kites are superb, so are his design, you can build your own too from his specs.
A bit off topic I know, but what a way to get some superb shots.