The iPod nano description on the Apple.com site says, "On a Mac, you can browse and edit your videos in iPhoto, too.
Well, not really. If you control click on a video from within iPhoto '09, a Quicktime X window pops up. The only thing you can do with Quicktime X and video is trim off the ends. Cut, Copy and Paste is not included with Quicktime X.
You can still get those features, but you need to install Quicktime 7 Pro off the Mac OS X Snow Leopard install disks.
I hope this gets resolved in an update to Quicktime.