I am thinking of interfacing with Autelis like I did for the Pentair integration. I wanted to integrate my pool with Intellitouch, so originally looked at tying it all together with a ScreenLogic TC-15/RS-485 from Pentair but the protocol translation is binary proprietary. It really isn't built to use for integration although some have tried and there are numerous hacks to get it to work so it was a frontier effort.
Then I found an Autelis plugin for HS3 which almost had me making the switch to HomeSeer. I did a bunch of research on HS3 but, in the end chose to build a plugin interface for the Autelis/Pentair firmware before my Autelis even arrived. This turned out to be a pretty good decision and I liked the results so I shared it on the forum.
ioBridge looks like it is similar to Autelis but it appears (I may be wrong but I didn't see it in the API docs) to lack the status notification and would require polling to get notifications of a change. For instance, I have a macro that sets up the spa for night mode which first turns off the pool, waits for the circuits to rotate valves, turns on the fire, cranks up the heater, and finally sets the lights. This process occurs over about a 10 second period. During each phase the devices are cycled in sequence on the Vera desktop. Polling is still required for some things but these changes are not the current status of the equipment. HTTP GET and POST can take up to 4 seconds just to get a response. So polling less than every 30 seconds or so is probably not the best.
You can see a bit about what I am talking about by reading the pdf docs here in the 2 posts. I am about to release v1.0 which fixes minor issues related to the most recent FW and cleans up some of the chlorinator communication.http://forum.micasaverde.com/index.php/topic,30275.msg216837.html#msg216837
This is for the Pentair gear but there are more similarities here than differences. Pentair uses Circuits and Features whereas iAuqualink appears to use only circuits and calls out specific "Features" like heaters, pumps, and chemistry.
What equipment do each of you have installed on your pool?