I know I've been in conversations that have attempted to do exactly what this guy has done since 2004. If you haven't seen it already, I strongly recommend taking a look at:

Sock Master's cleverly derived controller tree

For those that have jumped off of the Nintendo bandwagon and have refused to get back on since the Nintendo 64's love it/hate it input device, I beg you take a quick look. There's a pretty clear theme here you can't deny...

If you haven't already picked up on it, I'll just spell it out. The central column of the tree, or the roots as we'll call it, is entirely derived from Nintendo controllers starting with 1985. And, this isn't done by fanboyism or accident. Every so often, Nintendo decides to revolutionize the gaming input device they bring to market. And, when they do, it creates a disruption that is SO massive that other companies are forced to follow suit.

Case In Point:
-NES controller defines paddle shape and d-pad as the standard
-SNES controller defines shoulder buttons and diamond face button layout
-N64 controller defines analog stick as the primary 3D input mechanism
-Gamecube controller defines one primary face button to simplify learning curve

I realize the Gamecube controller is a stretch, and Sony and Microsoft have stuck to their last generation versions and just improved the overall designs. But, Nintendo does seem to believe in the singular primary "A" face button. The Wii is proof of that. So, I must ask...

Will the Wii design become a future standard?