As I was looking through the list of 250 new features in OS X Lion, I came across two that I think will be helpful to teachers and anyone who creates screencasts (screen recordings). QuickTime in OS X Lion includes the ability to record a region of the screen, not just the full screen. This feature is helpful when you just want to record one application window. Another feature that is helpful is the ability to show mouse clicks while recording. This feature will make it easier to follow the action on the screen as you watch a screen recording. Now if only Apple would add a pointer to the iPad when it is in mirroring mode that should be a big help for classroom demonstrations.