Mac OS X: Panther

Is Apple's newest O.S. worth the upgrade?

I've decided to review the preview of Panther, OS 10.3. I do not have a copy of the preview version, so my responses will be limited to what I've read at Apple's new Panther site (check the archives for other feature reviews)
I will also be rating each feature on a scale from 1-10 on whether or not they are worthy of considering upgrading from the might OS 10.2 Jaguar.

A major new feature Apple is touting:
New Mail.app:
As with every realease of Mac OS X, Mail.app has received a significant overhall in Panther to try and make it as feature-full as the most popular e-mail clients out there. The complete feature list is too long to list here, so visit the link above to find out more information. All I'm going to say is that if you're looking for a free e-mail client that has nice bells and whistles, or if you decided to switch to Apple's Mail.app in Jaguar, then you will probably want this upgrade. (Also, if you're using Outlook Express or Eudora and you upgrade to Panther, ditch 'em for Mail.app)

For the rest of us that still use Entourage, Mail.app does look like a tempting switch. One of the nice things about it is that it is specifically an e-mail application. Not only that, but Entourage, thus far, does not use Apple's Address Book application which many programs have started to use. And don't forget that Using Mail.app means you are supporting Apple and not the "Evile Empire"
Worth the Upgrade Rating: 7