Microsoft has just announced that the Marketplace is accepting Mango edition Applications.
So just in case that you’ve kept your mango applications ready in your hard-drive, waiting to this moment, this is the time!
First, you must uninstall beta Mango SDK from your machine and install the new WP RC SDK. You can download it from this page.
After installing the new SDK, you should recompile your applications and use Marketplace Test Kit directly from Visual Studio. This runs the same tests that the Marketplace team runs.
Now that your Mango applications are ready, use your Go Live license, which is provided by installing the new tools, and submit your apps.