I've been watching it. Seems like a pretty cool way to keep an eye on what's going on in your area. It may not be 100% accurate due to everyone's idea of "rutting activity" being different, but it brings a lot of data together from a lot of different hunters. More eyes in the woods = better information for me!
Like Greg said, the more input you can get, the better IMO. That's why I like when he and I are hunting different schedules. It's a benefit to both of us to keep tabs on the farm we are hunting at various times.
It's in my desk drawer. It's been pretty close, but it hasn't effected success rates for me. I'd be hunting these days regardless.
From what I witnessed the last two days, the bucks are locked on right now. I've seen two decent 8's standing with a doe (in two different locations) and him mimicking everything she did.