@brandon. Try to remove any Input Managers (for example SIMBL) you may have installed (empty /Libary/InputManagers/ and ~/Libary/InputManagers/). The problem appears to be that some of those see that we’re using WebKit and think we’re Safari and try to patch the application in a way that makes it crash.
@jeff@tribal. Sorry about that. It will be fixed in our next update.
(arno - AIR Engineering Team)