I'm a November 2001 filer. There's been some activity on case. I think it helped for me to call and speak to an IIO and inform her that it had been more than 580 days for my case, and that I hadn't heard anything except for a second FP notice. Two days later they issued an RFE.
I can't say this will be the case for everyone calling in, but at this point it wouldn't hurt. At least I don't think so if you make an earnest request when you talk to the IIO.
Farhan