- Facebook Platform launched in May 2007 and saw rapid growth with over 15,000 applications built and 250,000 new user registrations per day. Facebook became the 6th most trafficked site in the US. - The iPhone launched in June 2007 and sold over 4 million units within 6 months, achieving 27% of the US smartphone market. - Radiohead released their 7th album "In Rainbows" as a digital download where fans could name their own price, with over 1.2 million downloads and $10-12 million in estimated revenue.