littleBits (http://littlebits.cc/ http://littlebits.cc/) is a great commercial version of this. http://www.ted.com/talks/ayah_bdeir_building_blocks_that_blink_b

littleBits (http://littlebits.cc/ http://littlebits.cc/) is a great commercial version of this. http://www.ted.com/talks/ayah_bdeir_building_blocks_that_blink_beep_and_teach.html http://www.ted.com/talks/ayah_bdeir_building_blocks_that_bli...