Who are they?
Inquisitive people willing to try new things.
I heard the term from a friend of mine (a Prof in IIT, Delhi, India) last May. I read about it this morning in "The Ten Faces Of Innovation". I was Googling for "T-Shaped People". I came across this presentation.
I found more than what I wanted. A few perls from this presentation:
Design Is Never done
My Subject Isn't my Object
Insights come from observing the Market
Map Interactions to discover new Innovations
Find Patterns that yield Ideas