We have released the full featured API v3 for Sendloop a few months ago. The new API v3 gives you opportunity to do anything you can do via API connection. With the new powerful API, you can build your own re-branded iPhone/iPad application or build a re-branded reporting/email marketing platform on your own server.
For more details about API v3, please visit our help section at http://sendloop.com/help
To download PHP wrapper class for Sendloop API v3, please visit the project page at Google: http://code.google.com/p/php-sendloop-api-wrapper/