Microsoft is almost ready to release its Windows Phone 7 operating system to manufacturers and is working on finalizing the software. Phones expected to run Microsoft’s forthcoming OS are expected to ship in time for the holiday shipping season. The company is now testing the software on various different hardware to optimize the OS to run smoothly. Manufacturers will have a few months to learn about the operating system, though large customizations, such as skins and UI overlays like Sense UI and TouchWiz, are not permitted on Windows Phone 7. Early partners for Windows Phone 7 include Broadcom, Qualcomm, Samsung, HTC, LG, AT&T, and T-Mobile.
Windows Phone 7 is re-designed from the ground up and is a radical departure from Windows Mobile. According to CNET, “The overhaul was so significant, that when it was first outlined in early 2009, the project’s leaders handed out a bottle of Pepto Bismol to the several hundred people on the development team.”