I just spent an hour or so on making ToDoList compile for Unicode. Mostly search-and-replace, there are lots of strings that must be wrapped with _T() and many char or char* to be replaced with LP(C)TSTR. I also did some other fixes to get the code to compile cleanly.

You can grab the modified source code based on version 3.3.5 from my download archive here. An executable built with VC 7.1 and depending on the msvc70 runtime dll:s is also avaliable.