That actually led me to the current discovery. The firmware 1.0.1 does indeed contains the Ysobel font. Barnes and Noble still has the firmware available here:
http://su.barnesandnoble.com/nook/no...0_1_update.zip
I have to admit, I'm not as impressed as I thought I would be. At least Coolreader doesn't appear to be taking advantage of the hinting that these fonts supposedly contain. I wonder if I'd have to revert back to the old firmware and/or use the stock reader to access this functionality.
Is there an easy way to get the stock reader to recognize side loaded fonts? My device is rooted, just not sure how to go about getting the files in the right place.