Until today, it was only the evidence that the Windows Phone "Tango" upgrade has been pre-installed on a number of devices, including the Nokia Lumia 610 and the European version of the Lumia 900.
In today update, to its Windows Phone update history page, Microsoft lists what's new in the Tango version official build number of 7.10.8773.98.
- Messaging. Adds new messaging capabilities to your phone. You can now attach multiple pictures, videos, audio notes and ringtones to text messages.
- SIM card. Adds features related to SIM card contacts. You can now export phone contacts to a SIM card and selectively import SIM card contacts to your phone.
- Other quality improvements. Includes many other improvements to Windows Phone.
- This update is not available in all markets or for all phones.
Finally, the page says that Tango adds "many other improvements to Windows Phone."
A new study by Flurry Analytics, that used data from the 70,000 companies and over 190,000 applications that use its services to create new projects in Flurry Analytics examined new project start ups for Windows Phone compared to Blackberry, and says that Windows Phone could in fact be a viable alternative to iOS and Android:
"Over the past 12 months, Project starts for Windows Phone have grown by more than 600 (percent), now accounting for 6 (percent) of all new project starts in the Flurry system during June 2012. As a percent of new project starts, RIM has remained flat," Flurry said.
The company also looked at project starts for iOS, Android, Windows Phone and Blackberry in the second quarter of 2011 and compared them to the second quarter of 2012.
"Specifically, growth rates per platform for year-over-year growth are: iOS 66 (percent), Android 82 (percent), Windows Phone 521 (percent, BlackBerry 13 (percent). Viewing the relative growth rates show just how much Microsoft is gaining against the market," the Flurry study reports.