Until then, Macs come stock with Exchange support. Ironically, more Exchange support than Windows 7 built in. The reviews so far have said it works great although no one has tried it in a huge operation.
We’ve tried integrating MACs into a large Exchange enterprise, and it’s a long way from being a seamless proposition. We’ve also got a lot of people wanting to use iPhones. They seem to be a nice piece of work, but there are some security concerns. They seem to be quite easy to hack the passwords if lost or stolen, and in our situation that presents a potentially substantial legal liability.