Adafruit Industries' Limor Fried, Entrepreneur of 2012 Finalist

Limor Fried, Adafruit Industries : "we estimate 10k arduinos sold per month, 500k will happen mid to end of 2012 if it stays at the same rate. but it will likely accelerate, so early 2013 1m arduinos... ? congrats to the arduino team, we'll have a guessing pool for the 1m later :)"

Wikipedia : "After Microsoft launched the Kinect for Xbox 360, Fried, along with Phillip Torrone, organized a $2,000 challenge for open source Kinect drivers. After Microsoft condemned the challenge as modification to their product, Adafruit increased the prize to $3,000.

After significant advancements in the open source drivers, spokespeople from Microsoft stated that they did not condemn the challenge, and in fact were excited to see what the community developed."