Engadget has found a Microsoft advertisement page pointing to upcoming Windows Phone 7 launch and products. Currently, the Microsoft page confirms November 8th launch date and AT&T partnership for US launch. The page also shows Samsung Focus (previously known as Samsung Cetus) that will be one of the first Windows Phone 7 handsets on the AT&T network. We should get more information about various Windows Phone 7 handsets and worldwide launch dates on Monday, October 11th.