There's no question it's interesting stuff. I posted a link on it a while back:
Paleo Diet + IF = Great Blood Lipids
I have to admit I'm not completely on the IF bandwagon yet, and I think it's more complex that simply not eating for a certain length of time. Many intelligent people describe enhanced insulin sensitivity from fasting, yet on the same hand, the diabetic epidemic stems from large single meals of massive glycemic index and load being eaten. Well, that's one factor of many, but it's the flip side argument.
Eades is a big opponent of eating IF, and even did a short self-experiment with it. While I respect his view highly, there's others, like Robb Wolf, who swear by it.
I think it's worth trying, and find out what works best for the individual. I do a bit of a bastardized IF, and try and partition the majority of my carb intake PWO. But prior, I'm still taking in cals in the form of fat and pro. A straight fast drives me insane.
Edit: There's a bunch of links on the 4th page of that thread for more reading.
Edit, take 2: I did an awesome job of hijacking an EAA thread. Woo.
