Ever since the iPhone came out REALTORS around the world (or at least the USA) have been screaming for the eKEY to be made to work on the iPhone.
You’re dreams have not been lost and then may come true very soon.
And also for you Android users eKEY will also be coming to the Android Platform.
The websites announcing the Android and iPhone software is quite sparse but they do have a signup form to be notified of the availability. I would also suggest calling your local board as they will probably will need beta testers and be better able to tell you of the release date.
iPhone Info -> http://www.ekeyprofessional.com/ekeyiphone.html
Android Info -> http://www.ekeyprofessional.com/ekeyandroid.html