I’m just trying to figure out the economics of this. If I have an existing Mac and want to connect to an Exchange server, I will have to purchase a new OS? It isn’t a service pac or free upgrade?
OS X has had three service packs so far, as we’re at 10.5.3 now. This will be the next version of the OS, probably $129. However, it looks like upgrading will in general extend the life of your hardware due to all the speed increases, so it’ll probably be worth it.