Big news for Microsoft! Yesterday, the Windows Phone development team officially signed-off on the release to manufacturing (RTM) build of "Mango" which will be officially called Windows Phone 7.1. This is the point where the software is feature-complete, Microsoft has done all its work, coding and debugging, and handing the code to its handset and mobile operator partners to optimize Mango for their specific phone and network configurations. Officially announced during the Mobile World Congress in February, Microsoft Mango will bring more than 500 new features to push the boundaries of the smartphone experience around communications, apps and the Internet.
In addition, Windows Phone 7.1 will also add support for additional languages, expand access to apps by launching Windows Phone Marketplace in new countries and partner with new OEMs to enable expansion to new markets.
The Mango update for current Windows Phone handsets will be ready this fall and will come pre-installed on new Windows Phones like Nokia's Sea Ray which unveiled recently. Based on the Windows Phone 7 experiences from last year, it roughly took Microsoft and its partners 2.5 months from RTM Windows Phone to launch it commercially but this time it can be expected that it might goes faster. Therefore, it sounds reasonable that the first Mango upgrades might be available anytime mid to end of Spetember.
Cheers ~ Arne