Not sure if anyone with a Honeywell / Ademco panel is interested, but the company (Eyes-on / Envisacor) that makes the 2DS interface module for DSC alarm panels (that many of are using), are also about to market a similar module for the Honeywell / Ademco panels, and are on the look out for potential beta testers.
More about it here:
http://forum.eyez-on.com/FORUM/viewtopic.php?f=6&t=402&sid=d9e967475d37b1f09ed4b337a19013fd