Check out TabCandy (Watch the video).
Aza Raskin (Author of TabCandy – His dad started the Macintosh project for Apple)
This is one of classic example of TRIZ – Merging principle in actions
Surprising why it took such a long time to come up with such a basic idea
I guess that in general innovation/innovators come up with crude, complex, not-ready
mashed up versions of ideas
Then it is eventually refined leading to incremental innovations