Think back to last decade when timed-response games set in rhythm to rock classics were big business, and so were the giant plastic peripherals that came with them -- fake guitars came first, then phony drums, pianos, you name it. It became the defining fad of last gen's hardware; everybody had Guitar Hero, Rock Band or both, and would get together to jam as often as possible.
As anyone who once made money off Farmville or Angry Birds will tell you, a concept so simple isn't sustainable...
