Not sure exactly how I found it...but somewhere on the FAA website:
Babbitt just last week addressed congress, mainly talking about NexGen stuff and budgets but also made a statement that there hasn't been any progress made with rest rules / pilot fatigue. It will be almost impossible to regulate / police pilots commuting. And they would not have it worked out by the August deadline. (paraphrased).
Also, there was such negative feedback from the public comments, they were working on a supplemental package and would open that up to public comments...but hasn't been done yet.
Also, this week congress passed a bill (house and senate both passed it) on FAA spending / budgets. In that bill R-Bill Shuster added a section that requires the FAA to do an economic study before implementing any rule changes.
Meaning the FAA will have to study how a new rule will impact airlines financially (prob. a 2 year process) before making any changes. This pretty much just killed the rest rule changes!