Therm rev2 is up and running! I don't have any photos of it actually powered up at the moment, but I have it running a sous vide setup to verify that everything is working properly. Software has been ported to the new micro and basic temperature reporting over a USB virtual serial port works as well.
Since my new micro does not have EEPROM, I need to rewrite my save/restore functionality to read and write from flash. Once I wrap that up along with some other tweaks, therm should be completely usable!
I'll add photos of the updated design and links to source in the coming weeks.