I have a D2Global. I really like the phone and it worked flawlessly. However, after the recent OTA OS update there have been some odd behaviors. The most common is that at the end of a call the screen goes dark and i have to press the on button to bring it back so I can end the call. Also, sometimes when I touch the end call button, it highlights as it should but the call continues and I have to hit it again. This never happened before. there have been several other oddities but this is the most prevalent and never happened before.