Well, since this was the first thing I've ever compiled for the N800 I guess it will work. What's really surprising is that it was compiled OUT of scratchbox (look at the compile directions...weird). I just setup scratchbox today, so I might go back to it.
I followed the instructions to the letter and didn't get any errors whatsoever, so maybe it needs tweaking on the command line? Or a hidden config file? Check to see if any config file(s) are created when running it with a real ROM image.
I wish he had made it compatible with the dev Newton OS image, but oh well...maybe a peek at the code will reveal "the secret" if any of you want to take a gander at it to see if it can be hacked to run the dev NOS ROM.
The Mac OS X Einstein app runs the dev image perfectly.
For those of you out there with REAL Newton ROMs, can you setup scratchbox and see if it runs in there?
Damn, now I have to hit up eBay for a real MP2100. Oh well, always wanted one anyway. I kinda miss my old MP120 I used in Bosnia in '96...great little portable fax machine at the time.
Already have the Palm emulator running on my N800, would love to eventually get Einstein going for my "three-pdas-in-one" device.

p.s. Glad you got it steven, I figured it crashed out or something after the upload so I wasn't sure it uploaded all the way...should have bzip2'd the damn thing first. Sorry it doesn't work, contact the author maybe? Perhaps there's a compile switch that needs to be used that isn't documented in the instructions I followed?
Or does the Einstein.rex file that the 770 version uses also need to be used on the N800? It's on Diller's site.