Wow, its real:

http://biz.yahoo.com/pz/030729/43212.html

FWIW, we know a lot of kayak tours (etc.) take a somewhat optimistic
attitude.

It's pretty scary (for instance) to see kayak tour ads that show somebody
paddling next to alaskan ice without even a sprayskirt.

On that subject, most people would suggest a drysuit to battle that
hypothermia, rather than a liferaft for your sea kayak.

A lot could probably be said for kayak safety without a) "scam" hyperbole
and b) translating into any one patented solution.