The Olympics take place from July 27 through August 12. As you can imagine there has been incredible local demand for tickets. An estimated 6.6 million tickets to all events in 26 Olympic sports are being sold to the public, a further 2.2 million are being allocated to sponsors.
Last spring, in the first phase of sales, 22 million people applied for 3 million tickets. This has been a huge source of friction between the public and the London 2012 organizers.