I have a MacBook Pro 2.4GHz from last Fall (not the new Unibody) that has a keyboard and trackpad that freezes, meaning it becomes totally unresponsive, with no warning for no reason. Either I carry an external keyboard and mouse, or, my only recourse is to hold the power button down and restart the machine. When it reboots, sometimes the keyboard works and sometimes it does not. If other folks have had or are having this problem, would you please step up and say so? I'm tired of Apple support people telling me they have never seen this problem when there are so many others who have written to the forum with the same or similar issues.