The Transparent Canoe Kayak.

This canoe-kayak hybrid has a transparent polymer hull that offers paddlers an underwater vista unavailable in conventional boats. Seating two people, the sturdy hull is made of the same durable material found in the cockpit canopies of supersonic fighter jets. The vessel supports up to 425 lbs., displaces a greater amount of water for more surface stability, and paddlers sit lower to the deck, resulting in better balance. Adjustable seats allow paddlers to personalize their leg room

More here.

A Very Cool Surf Film Coming Soon.

I Had Too Much To Dream Last Night - Trailer from Deus ex Machina on Vimeo.

Snow Ski Flying

Fresh Snow, Skis and Little Wings from overflow50 on Vimeo.

Flying Bicycle

The XploreAir Paravelo is the world's first flying bicycle; a conventional two-wheeled bike that transforms into an easy-to-operate aircraft requiring no licence to fly and capable of altitudes of up to 4,000ft.

Human Powered Helicopter

Sikorsky Aircraft recently offered a 250,000 prize to any group who could create the best human powered helicopter.  AeroVelo from Canada took the prize with this fascinating contraption, which used a large scale quad-copter design.

The Flyboard Jet Boots

This unreal device is spreading fast around the world.  Get ready to get your flying Aucuaman on.  This remotely jet powered set of boots let's users fly in and out of the water, literally.   I've never seen anything like. 
Good for few thrills while on vacation, but I doubt this will evolved into an actual sport.  That said, I can't wait to try it.

The Flyboard is basically a bolt on device that is attached to a jet ski and requires proper instructions and safety gear before being able to use the product successfully and efficiently. The PWC (Personal Water Craft) is powered from 100 horse power and up and follows the rider, permitting the freedom to go anywhere, even underwater. The thrust that comes from the PWC is run through a 180 degree adapter (which allows the rider to divert and control the device in any desired motion) and then goes into the hose that is 4 inches in diameter and roughly 55 feet long and has capabilities of putting the pilot above water 35 feet or below water 35 feet. ^[5] The hose is attached in a way so that the PWC follows behind the rider’s trail allowing the rider all types of freedom even allowing the rider to go under water if they desire. The pilot that is on the Flyboard is in complete control of the navigation while the throttle is controlled by the person in charge of the PWC. The pilot on the Flyboard is secured in by bindings similar to a wakeboard and the rider is propelled from water jets below the device. There are certain rules that one must go by when purchasing a Flyboard though. The Flyboard is buoyant for safety, which also allows the rider to rest in the water between rides if the rider happens to get fatigued.^[6] The use of a personal flotation device and helmet is recommended for safety purposes.
Two versions of the Flyboard exist: the Flyboard Standard Kit and the Flyboard Pro Rider Kit. The former is a board with hand-held stabilizers, which was the original design. The latter dispenses with the stabilizers.
Device power is controlled by a throttle on the PWC. The equipment may be used in two modes: The primary one requires two people, one to control the PWC throttle which regulates the power and height of the rider. The secondary mode relies on an accessory called an Electronic Management Kit (EMK) which allows the rider to control the jetski throttle.

Kiteboating

Inspired by the success of kiteboarding, many traditional sailors are trying to convert to the higher powered suspended sails.  The word "kite" to describe these sails is a bit misleading.  The kite of kiteboarding is essentially a suspended, curved sail.  It's curved shape is an efficient and stable flying wing, which can be maneuvered into the most ideal positions to catch wind.  Traditional mast sails are more limited, and also sit much lower to the water where wind is often the least strong.   A kite sail is a suspended sail, capturing more wind, more efficiently, and thus, the strong interest to adapt them to larger sailing craft.

Several inovators are testing new solutions to attach these sails to larger craft.  Yvez Parlier is exploring many industrial, and well as recreational applications for boat mounted kites.  Read more about his at his site Beyond the Sea.

Kai Concepts is aggessively moving forward with designs in the San Francisco bay area. Read more at their webiste here.