If you wished to register with Windows Marketplace for Mobile, Please note: “registration is only open to English language markets in US, UK, Canada, Australia, New Zealand, Ireland, Singapore and India. Registration in other markets will be enabled over the next few months.” Developers with an existing billing relationship are advised to go through following steps to ensure all the information in their commerce profile is correct:

Also, check this video about Windows Mobile Application Development, John Bruno chats about the Marketplace registration launch and the subsequent phases.