What Leopard feature are you most excited about?
For me it is the ability to remotely control systems over .Mac. I have convinced a ton of people to make the switch to Macs. Now once we have Leopard I will easily be able to remote in and help them out. Sure there are other free ways, Hamachi and Chicken Of the VNC, but I look forward to a slick way for less than $99 a year. Here's a tip. Get family packs, cheaper than singles and you get more of them.
i may be wrong, but it's my understanding that screen sharing is not tied to .mac. rather, its just a new button in ichat like video or audio chat.
and this is among my top new features of leopard.
~kyle