Regarding the concept in the video:
+The bottom row makes sense, I suspect most people who taught themselves to touchtype (aka without specialized software and/or strict supervision) do this already. Improves comfort and (on Qwerty) reduces consecutive finger use (slightly).
-The top row shift is interesting, but a poor choice for qwerty typists. E, R and D all on the same finger causes an atrocious boost in consecutive finger use. Beyond that, the increased wrist angle forces closer keyboard position and pushes the left elbow out to the side, away from a natural rest position. This merely moves the stress from the wrist up to the shoulder/neck, which can cause spinal problems. The wrist angle also shifts relative positions of the keys, increasing distance to both the R and T, while the W reach becomes more lateral. The hand naturally shifts further up on the board due to frequency of T and R, making the bottom row even harder to hit. Try typing 'extra' with this fingering in qwerty.
In conclusion, for Qwerty I'm not in favor. http://patorjk.com/keyboard-layout-anal … d/n0GtD0m1
For Colemak, it might be worth a try. http://patorjk.com/keyboard-layout-anal … d/rDF779lT
EDIT: You may question my claim of the increased distance to the T. Try this experiment: From your usual home position, your move your fingers to rest on A, S, R and T. Now, keeping your wrist straight, move your left elbow out to the side. Notice the way your index finger straightens? QED.
Last edited by cevgar (17-Dec-2014 18:07:21)