Kiriri had some time saps with school I think, not sure if he plans to continue updating it eventually or not.
If you want you can take a gander at this thread:
http://hutonggames.com/playmakerforum/index.php?topic=3961.0Robot is taking a whack at making an A* system with playmaker, I plan on pitching in but haven't had time to sit and work on anything, mostly just been reading about how to go about solving the paths and such.
