Engadget: Windows Phone 7 said to be getting major ‘Mango’ update in August or September

Engadget already heard that Windows Phone 7 is set to get an update of some sort early next year — possibly coinciding with Mobile World Congress in February — but ZD Net's Mary Jo Foley is now reporting that an even bigger update could be following in August or September. According to her sources, the update is codenamed "Mango".