Magento customer webservice / api

I need some sort of way to handle Magento's customer login, customer account creation and order checkout via some kind of w开发者_JAVA技巧ebservice to be used for Flash, preferably XML. As far as I know the Magento API doesn't have these features. I found the Mammoth Webservices extension but it seems that the project is inactive judging from heir site. Any thoughts?

Thanks!

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Create your own module to handle these features the way you want.

Or extend the API. The power of Magento is exactly his extensibility.