I’ve been using this approach too. Although i work in linux i think it is very similar. I’ve been trying to trick the filesystem to be a PIM. I have my contacts, for example, in one folder (called people) one txt file per person. using grep or find or even cat + tab i can find someone very easily w/o having to launch evolution or a similar program. I’ve been meaning to do something similar to manage gtd, but i guess i would need perl or ruby or python skills. I don’t have any (i’m an artist using gnu/linux out of political conviction). still i just have a gtd.otl and manage everything in VIM or gvim. my appointments in remind thru Wyrd.