The MIT Media Lab recently teamed up with the NBA and Turner Sports to develop a device that measures the force of a dunk. This technology, the Slam Net Force, was used in the NBA Dunk Contest over the weekend.
Read more here: http://www.wired.com/playbook/2012/02/new-net-measures-the-force-of-monster-dunks/
(the following video was featured on NBA.com and has already accrued almost 150,000 views)