According to a Windows Phone Developer Blog post the Windows Phone 8 Marketplace will be open to developers from 180 countries at launch! Of course, consumers from those areas can take advantage of that as well by being able to browse and download apps from those markets. Finally the Philippines is supported by the App Hub! I can now sign up as a developer! I am really stoked by this! Yay!
Additionally, as mentioned in the Windows Phone Summit, besides advertising and app sales, devs can now take advantage of monetizing their investments through in-app purchases – a boon for game devs! Kaching!
For now we wait for the developer tools for Windows Phone 8 which is apparently the same for Windows 8.
More information on the link provided above. You may also see the full list of supported markets after the break (it’s quite long!):