NewtOS/Einstein works on the 770!
This is developing, but it works at this point, once you disable the kernel-watchdog and kill Matchbox to free up enough RAM for Einstein to launch. I’ll post a more detailed receipe of what I did later today, when I get some free time.
Paul has put up the Einstein Platform 2006 ( for Nokia 770) on his site.
Don’t forget that you’ll need a Newton ROM to make this work. Paul has a Newton Emulator for the Mac (on that same page) that has a special application that will dump a Newton ROM over the network to your Macintosh. Using a MP2100 ROM is the best idea.