Hi Mac fans, since a couple of weeks I've figured out a way to use a sort of "4 finger gesture" to activate Expose' and Spaces on my MBP. I mention a "sort of" because instead of 4 fingers you need only 3 but I swear that the result is the very same I must say it is really handy, at least for me, so I decided to share it with you. This method obviously requires at least a MBP with multi-touch trackpad. Many of you probably know the cool app "MultiClutch". Among the different gestures that you can define there are a couple of extra possibilities "Swipe Up" and "Swipe Down". I see already your eyes blinking because you got the point. Steps: 1. Download and install MultiClutch 2. Go to the System Preferences and click on MultiClutch 3. Define the "swipe up" and "swipe down" operation in the Global section by using the plus (+) button in the bottom right. 4. Now you need to figure out which actions you want to associate to the gestures. I've choosed Spaces (F8) for Swipe Up and Expose' (F9) for Swipe Down. 5. Before you can assign this keys to MultiClutch you need to disable these keys in the Spaces and Expose' preference panes otherwise they will activate when you will try to assign them. 6. Once disabled or changed the keys that trigger Spaces and Expose', go back to MultiClutch and assign F8 to Swipe Up and F9 to Swipe Down. 7. To conclude go back to Spaces and Expose' prefs panes and set back the original keys (F8 and F9) to activate them. Enjoy!