I don't know. It might be interesting to build a hybrid. As Trisoft pointed out, the solder points are there. It appears that some of the speculation is correct. A 128 MB flash-chip has been installed in place of the 16 MB. If you were a hand at soldering, you could have your cake and eat it too with a 128 MB flash-based system and a supplementary HDD. You'd have a device that worked much like the 760 and 860 with a Microdrive for storing all your MP3s and other sundries and a free CF slot for wireless, if that was your taste. Of course, you'd have to somehow find out what sort of controller chip the Sharpies were using. I myself like the HDD, cause it sure beats carrying half-a-hundred SD cards to hold my music, but I also like the fast boot-time of my 860. In any event, I am NOT a hand at soldering.