I think the share screen facility in the finder is ace. The only computers I'm likely to want to share screens with are my own, and through .mac's VPN I can set them all up to be an extension of my current machine. That is, let's face it, amazing. It'll be interesting to see if screen sharing also remains in iChat. I'd have thought it would, since it'll be related to iChat theatre. BUT, that still restricts screen sharing to people who can use iChat, not "anyone". We're talking people with bonjour on a local network; .mac addresses; and possibly AIM addresses. It's not clear all features of iChat will work with a regular AIM account, which leaves bonjour and .mac - the same people who's machines can be made available on the sidebar. Where's the problem?