This is an interesting comment…
“they’re pre-announcing this so far in advance to discourage current Entourage users from switching to the new Exchange-compatible versions of Apple Mail and iCal in Snow Leopard.”
If this is the plan then they’re on the route to failure. Moving desktop mail client has a minimal cost. You just plug in the new client and start syncronizing the mail server. It’s a two minute job.
What seems to be happening here is that Outlook is becoming a server only tool. The poor desktop client (is there anything slower?) is killing the fanchise.