I've not heard anything officially on refunds yet. In all honesty, I'd wait on asking for a refund till we figure out our best possible compensation package. I'm going to keep pressing that issue with my higher ups.
They didn't even tell you they missed the tapeout deadline. What kind of compensation package can you get? We are about to lose a significant amount of bitcoins no matter what happens next. Unless the chip manufacturing is reversed, this thing is fubar. It will not be competitive versus AM's chips and probably KnC's as well. On top of that it will be TWO MONTHS late.