http://www.flickr.com/photos/4513843...n/photostream/ is a nice photo of the chip, from Snoopy68, and this is the corresponding page in M-Systems:
http://www.msystems.com/site/en-US/P...kOnChip_G3.htm
Basically TrueFFS is a dinamic+static wear leveling, to optimise the limit of 10K-100K rewritings. No bad.