I got an iSight this week and tried it out. While iChating, I found that more than once I wanted to show some or all of my screen to the other person. I haven't stuck my iSight to the monitor yet (I have weights on the base to hold it in place) so I picked up the iSight and pointed it at the screen, moving it closer to "zoom in" on something. Was the picture shaky? Yes. Was this method crude? Yes. Was it effective? Yes. Without a screen sharing feature in Chat AV, you could always establish a separate connection using third-party screen-sharing or videoconferencing software, but that seems like such an inconvenience that you wouldn't bother when you just wanted to show somebody a window on your screen for a few seconds now and then. Who else would like to see this feature added to iChat AV? And until/unless Apple does so, is there a convenient solution?