I recently switched over to doing development on a MacBook Pro and of course I took Intellij along with me. I've really taken to using gestures as the multitouch trackpad makes it really elegant and I find myself really wanting to utilize them in my IDE.
A while ago Roman Chernyatchik mentioned using MultiClutch to map gestures against IntelliJ key sequences (http://devnet.jetbrains.net/message/5232414). That sounded really cool but MultiClutch doesn't appear to be supported on Snow Leopard. I read on the Apple Developer Library (http://developer.apple.com/library/mac/#releasenotes/CrossPlatform/JavaSnowLeopardUpdate2LeopardUpdate7RN/NewandNoteworthy/NewandNoteworthy.html#//apple_ref/doc/uid/TP40009967-CH4-SW1) that sending gestures was now supported through the EAWT event system. Is there any chance that this capability might have been enabled in Intellij X?