I do believe POE makes implementation of event based programs more easier than some of the other frameworks that your mentioned that I have used e.g. MFC. As of right now it might lack some functonality of the big boys but I feel its getting there. As for writing a state engine from scratch, perl says dont re-invent the wheel. If its out there just plug it in. I too am trying some intresting things with POE. Will keep you updated on how it goes.