Can someone explain to me WTF is the Steam Machine controller?

[richardhutnik]

jimi13 said:
you know those "trackpads" reminds me a litle of the intelvision d-pad

http://artofgaming101.blogspot.se/2009/04/controllers-70s-to-80s.html

not sure if thats a good thing or not though

I also made mention of this.