Steven Zahm@ Jason
Sorry, no, I have no real plan at the moment for such an extension … just a note to myself about creating one, but have no idea what the SMS would be used for. I added a reference to your post so when I do get to looking at this, I’ll have an idea of where to go with it.
I do not have any docs on writing an extension, but really, it is not different from writing a plugin for WordPress. The only real different would be you would check to make sure Connections is installed and active and use what ever functions within Connections you need in addition to those provided by WordPress core.
I’ve recently started using phpStorm … now when I write something for Connections, I create a new WordPress project and then add Connections as a PHP library. This gives me code completion for both WordPress and Connections. It also allows me to jump to that function within either if I need to learn more about it.
If you decide to write your own extension and need know if a function exists or what not, just ask.
I hope that helps!