Microsoft’s final build of Windows Phone Mango has been rubber stamped and released to manufacturers and wireless carriers according to Windows Phone Dev Podcast. The move is among the final steps before Microsoft delivers the Mango release to customers. The most recent reports have suggested that Microsoft will update current Windows Phone devices in September, although winrumors says the update could be pushed out as soon as August. Microsoft’s Windows Phone partners include HTC, LG, Samsung, Dell, Acer, Fujitsu, ZTE Corporation and Nokia, and we should see a number of new devices from those companies in the fall time frame. Mango was officially announced in May and Microsoft has promised that it will deliver more than 500 new features to the platform.
UPDATE: Microsoft’s Senior Director of Communications Bill Cox has stated that Windows Phone 7.5 Mango has not yet reached RTM, as Windows Phone Dev Podcast reported.