The Windows Phone Marketplace, which has been expanding at a relatively mediocre pace, now covers five more territories. Argentina, Indonesia, Malaysia, Peru and the Philippines now join the 36 other countries that have access to games and apps for their handsets. Todd Brix recently published an article on the official team blog detailing plans for an upcoming expansion, urging developers of those countries to start submitting apps and games.
China is not open to Windows Phone owners just yet, but developers are able to submit content. If you're a developer with global reach, be sure to read up on Brix's latest post walking through this expansion.
Source: Windows Phone Team Blog