I got https://github.com/freetronics/DMD2 ported and it works great, you can connect an LED dot matrix display to the ESP8266 and make it draw simple graphics and messages, some level of PWM dimming is available (although I'm still having some brightness stability issues, need to get my scope and see what's happening I think.), I am now moving on to Time related code.
I'm now eyeing http://www.pjrc.com/teensy/td_libs_Time.html and http://www.pjrc.com/teensy/td_libs_DS1307RTC.html as next targets for porting (if anything even needs to be changed for them to work, probably just some #ifdefs to smooth out the differences)
Is porting these libraries a good idea? Does anybody want them? Are there better candidates? I ask before I put any potentially unnecessary effort into it or simply choose a poor library for porting.