Thanks - seems like good advice. So did you end up applying to AppFactory and if so how did it turn out?
For anyone curious, one of the facebook platform ideas was to make a Sim City type game for the facebook platform where your city got bigger and better as more people viewed it or you invited them to make their own neighboring cities.
Kind of like this French site, where you build a city by having people go to your web site. http://rms.miniville.fr