**Editor's Note: Click here for our list of November's hottest selling smartphones to see how HTC and Nokia measured up to the competition.**
It looks like a big marketing blitz for the Nokia Lumia 920 is paying off – at least among smartphones running on Microsoft's new Windows Phone 8 operating system.
While the debate rages on to whether the Lumia 920 – aimed at both business users and the general consumer – sold out on Black Friday due to massive demand or a shortage of supply, there's little doubt that it's the new king of Windows devices, according to data from mobile ad firm AdDuplex and published by Paul Thurrott's Supersite for Windows.
AdDuplex monitored Windows Phone apps that use its software development kit and said that the Nokia Lumia 920 is in sixth place (3 percent of usage) when you rank all Windows Phone devices (version 7 and 8), but is the leader when broken down only among Windows 8 phones. One of its biggest rivals, the less-hyped-but-still-expected-to-be-competitive HTC 8X, is languishing in 20th place overall, the ad firm said.
The Lumia 710, 800, 610 and 900 took the top four spots overall. The HTC Radar was fifth in the AdDuplex market-share measurements. Nokia has 76 percent of the Windows Phone market, compared to just 12 percent for HTC and 9 percent for Samsung.
The U.S. has 14 percent of the Windows Phone market, the study showed, with China (13 percent) and India (12 percent) close behind.
Meanwhile, Nokia on Wednesday unveiled a new Lumia phone – the 620. The Finland-based manufacturer says the 620 is "more fun, [has] youthful appeal, and [a] compact design. It'll go on sale first in Asia in January. The 620 isn't quite as sophisticated as some of its older cousins and is expected to be one of the lowest-priced Lumias on the market. No word yet on potential U.S. carriers.