Luke Wroblewski, “Why Care About Touch Interfaces?”:

“Apple sold 1 million multitouch-enabled iPads in 28 days. That’s 35,700 per day. Last quarter (Q1 2010) they sold 97,000 multitouch-enabled iPhones per day. In February, 2010 about 60,000 multitouch-enabled Android phones were being sold per day. Add that up and you are looking at 192,700 touch-based devices making it into consumers hands per day.”

(via 2105)