To all Partners in Singapore: The Windows Azure Marketplace now features Commerce functionality for Singapore and 25 other countries, so if you’re from Singapore, you can now not only list your Windows Azure applications on the Marketplace, but also directly sell it through that portal. Get ready for some serious global business!

http://blogs.msdn.com/b/windowsazure/archive/2011/10/07/windows-azure-marketplace-now-available-in-26-countries-and-support-17-currencies.aspx

You can find guidance on how to commerce-enable your SaaS application here: https://datamarket.azure.com/publishing

For all other countries, you can already benefit from a free listing on the Marketplace to draw attention to your solution and attract new customers. Signup page is here: https://publishing.marketplace.windowsazure.com/

Good Selling!