Hi guys, what's up?
I was browsing the russian forum and I seem to have stumbled on something quite interesting. There's this guy who seems to have been somewhat succesful at using the PRS600 firmware on a PRS700 unit. The link is
here.
As the post says, he managed to get the 700 working as a 600 (with handwriting and all of that) with minor bugs. It's pretty exciting.