I've looked at the igrill and just don't think I want one. The reviews sound like they are a little prone to problems and I have an android phone and from what I see aren't up to par yet.
I like gadgets to play around with. I really wish they made a wifi smoker that would link up with a smart phone with several probes, a fan and temp control and maybe a wood or pellet hopper. Building a custom program would be lots of fun. It really shouldn't be that expensive to build. The brain would be your device running an app.