Yesterday (September 1) Terry Myerson, VP of Windows Phone Engineering, Microsoft officially posted in his blog that Windows Phone 7 just went into RTM stage. RTM, short for Release To Manufacturing is the stage where there are no more changes to the source code, the software is considered finalized and it will start to be sent out to Microsoft partners around the world. OEM partners will customize, add software and do their appropriate hardware and network tests to make sure everything is in tip top shape. Release date is still kept tightly under wraps.
He officially announced, also that “Windows Phone 7 is the most thoroughly tested mobile platform that Microsoft has ever released.” he indicated that Microsoft had about 10,000 (yes ten thousand) devices running automated tests on a daily basis. He also said that over a half million hours of active self-hosting use, plus more than three and a half million hours of stress test passes. To top things off; eight and a half million hours of fully automated test passes over those devices. That is not counting the thousands of independent software vendors and developers testing the OS and providing feedback for it.
Finally, he said “We are ready.”