Microsoft just got hit with a double-whammy: Reports show that Windows Phone market share is in the very low single digits in the U.S. and have declined since the release of Windows 8, and Microsoft's tablet share is scraping the bottom. Will Microsoft eventually be forced to run up the white flag? The latest figures about Windows Phone share from Comscore are grim. In the quarter ending in December 2012, Microsoft had a 2.9% market share of the smartphone market in the U.S., compared to 53.4% for Android, 36.3% for the iPhone, and 6.4% for Blackberry. More disturbing still is that Microsoft's market share declined from the quarter previous, when it had a 3.6% market share. That means that Microsoft's share of the smartphone market declinced since the release of Windows Phone 8.