Plenty of reports from around the net are coming in of iPhone users experiencing iOS5 upgrade problems. Issues include loosing all of your programs!
Meanwhile Windows Phone 7.5 is quietly rolling out with more than 30% of handsets worldwide successfully updated with no issues.
All this while Blackberry services in the US and Europe are down and have been for over a day now with no word from RIM when they will be able to restore service.
This has to be a win for Microsoft in the reliability stakes 🙂