Joomla web service module

I am looking for a Joomla web service module to allow users to create a user login and add posts and comments.

I am writing a standalone mobile version of my joom开发者_运维百科la site and I need it to call these web service functions.

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Joomla has an XML-RPC interface. However, it will be removed in Joomla1.6 btw.

Also take a look at: http://extensions.joomla.org/extensions/news-production/

And : http://extensions.joomla.org/extensions/news-production/blog/3831