When I purchased the TIAO, it actually didn’t mention anything about being “OpenSprinkler compatible” and I was really just planning on writing my own while looking at what their software did. Like many projects, it went on the shelf for a while and when I picked it back up was when I actually found the OpenSprinkler project. So while I would be happy to help support the OpenSprinkler project financially, I didn’t know about it until I purchased the TIAO.