Microsoft Corp. (Nasdaq: MSFT) outlined the progress of its mobile ambitions Thursday, as the company announced it has shipped only 2 million total Windows Phone 7 (WP7)-based devices since it launched the operating system six weeks ago.

The company announced 1.5 million WP7 devices shipped just one month ago, implying that only 500,000 were shipped (not necessarily sold to consumers) in December, the typically busy holiday-buying season. For comparison's sake, Google says there are 300,000 Android devices activated daily.

"We said all along that our first priority was to make a phone that people loved and to that end, we are pleased with the initial response," said CFO Peter Klein. According to Microsoft, 93 percent of customers are satisfied or very satisfied with WP7. "While we are encouraged by the early progress, we realize we have a lot of work ahead of us," Klein added.(See Microsoft Sells 1.5M WP7 Phones and OS Watch: Google Sees Dollar Signs in Mobile.)

That work includes delivering on updates Microsoft has promised for the OS for basic capabilities like cut and paste, and support for CDMA. So far, WP7 users are still waiting. (See CES 2011: Microsoft... That's It? and OS Watch: Samsung, King of Androids.) Klein also repeated stats that the OS is on nine devices in 30 countries and with 60 operators. Developers are adding WP7 apps to the marketplace at a rate of over 100 per day, and Microsoft boasts 24,000 developers building for its growing platform.

— Sarah Reedy, Senior Reporter, Light Reading Mobile