About half of its 250 million monthly users worldwide log-in everyday. About a quarter, or 65 million, used the site from mobile devices in August, according to Henri Moissinac, director of Facebook Mobile. That more than three times what it was in December, when 20 million users were using Facebook through apps and the company’s mobile web page. The U.S., U.K., Canada and Indonesia have the most active users.

Does anyone know what percentage of the 65 million daily Facebook mobile users are coming from the iPhone vs. other phones?