I might pick this up. I am hardly ever home due to my new work schedule and I can't keep an eye on my fermentation as much as I would like to. If I can get temps and readings to my phone, I would be a very happy guy.
I saw the add for it in the December BYO. Interesting gadget, but they need to stop the ridiculous pricing on this one at the brewnanny thing. But I can see where if you travel on your job a lot that it would be useful.