Jim Michalak's WeeVee design. It is just 7.5ft long, with a deep V hull after which the design is named.
John gives an excellent account of the build and launch at Duckworks Magazine. He reports that getting in is a bit of a challenge, which is to be expected with a boat that has very little below the waterline at the edges, but that she has a remarkable turn of speed for such a short boat. Jim himself also noted this.
But the really nice thing about boats this size is that they are so easy to take to the water and launch, allowing you to grab those opportunities that might otherwise pass you by.