eKeypad is an application just released for the iPhone, which interfaces with the Elk M1 security system. The client establishes a connection with your M1 directly, so it does not depend on 3rd party server. The connection is not encrypted, but it looks like the author made it a high priority trying to support the secure port on the Elk M1. The application is now available, and costs $9.99 at the Apps store.
Active discussion about eKeypad
Announcement said:Finally, mobile control of your Elk!
eKeypad is a new native application for iPhones that enables interactive control of an Elk M1 Gold. Using a network connection, it provides quick access to the alarm and keypad function keys of your Elk panel.
The application is available here on the iTunes application store. More information and details are available at the eKeypad website.
Active discussion about eKeypad