What exactly does Entourage do that the organization software that comes with Mac can't do?
It has something called a Project Center, where you can link Calendar entries, emails, tasks, to-do lists, general notes, office files, internet links, images etc all in one central interface. If you're genuinely working on long term projects etc, this can be useful - for example if you're applying to school or running a group/business or whatever, being able to access all relevant emails, files, internet links etc from the same front end is useful - it can remind you to reply to mails, chase things up etc. I think it is aimed at Outlook users... when you have had functionality like that in the past, losing it is pretty hard. I think Entourage does make the Mac a viable workstation for serious Project Managers... (BTW I am a Project Manager by trade).
iLife does offer similar things, but it's in a few different places and honestly doesn't offer the same level of flexibility. Project Center is the best thing about Entourage, it's a pretty decent application. The only real reason anyone will criticize it is because of anti-microsoft feelings (which don't change the fact that objectively it's a decent app) or that fact that it can lag pretty badly under rosetta. The reason, incidentally, it is so slow under rosetta is because you pretty much have to link it to iCal to get all those automatic links to add to your calendar and to sync to external devices (like your phone). So when you check your application activity, you'll see not one PPC program running, but 4. MS Database Daemon, Entourage, Alerts Daemon and AU Daemon. I can't wait for Office 2008 as these are the last PPC apps I use (Word/Excel and Entourage).
Yeah, it...um...stores...notes. Yeah. Notes, like Stickies. Much more powerful.
I am not sure that was entirely necessary.