Migration from Exchange to iCal looks to be a “tear-it-out-and-start-all-over” arrangement. It also looks like iCal suffers from the same problems with large scale free/busy searches that Exchange did until the current release - forcing the client to publish the free/busy information, and making the searching of calendars a client-side operation. I just got out from under that arrangement and I’m in no hurry to go back.
iCal uses open standard formats for easy migration. It's not iCal's fault that Exchange doesn't.
I just got out from under that arrangement and I’m in no hurry to go back.
This looks like a case I alluded to earlier. Buyer knows what he "needs," as opposed to what the business requirements say he needs. Thus he'll forego products that are a much better value by coming up with trivial differentiators between the products that only his has.
I call this the cupholder excuse. You're looking to buy a car and you use the number of, size or placement of the cupholders as the deciding factor in your analysis of which car is the best value. And wouldn't you know it, only the car you wanted in the first place has the right cupholder arrangement.