Early in July, we heard that the AT&T would¬† release the release the WP 7.5 Tango update for Nokia Lumia 900¬† in the next few weeks, after about one month’s awaited, today it is reported that¬† one new firmware upgrade has been ready, and it will be delivered to att lumia 900 soon. Unfortunately, there is still no a spefic release date, it maybe come out any time starting now. The update will bring the Window Phone Tango update for the Nokia Lumia 900, and it will be available for download via Zune tool. Previously the Window Phone 7.5 upgrade has come to the variety of models, including Lumia 800.
At the beginning of 2012, the WP Tango firstly¬† appeared on the¬† low-end models of Nokia Lumia 610.
The WP 7.5 Tango OS mainly has brought two new characteristics, inserting a picture, video / audio file and tones in the text, and importing / exporting contacts list in¬† SIM card. (Read the article)