I was planning on using this for my garage door automation, well, really only just sensors to let me know if a door was open and flash some lights. After reading about some issues here, I decided against the EZIO device and bought a Fusion Brain which has a lot more I/O ports than the EZIO’s and is way cheaper. I will be using it with PowerHome. It does not do native Insteon.
Simplehomenet, you ought to see if you can OEM the Fusion Brain and put the Insteon front end on it. That would be a great IO device!
They also have a forum at http://www.mp3car.com/vbulletin/fusion-brain/