New QuickBooks for Mac details on an Intuit accountants page:
Check out the white paper pdf for the "new and improved stuff that starts on page 14.
New and Improved for 2005
-More Customizable Forms Improved
-Share QuickBooks Data Between Mac and Windows Improved
-Menus That Match QuickBooks for Windows New
-Make List Items Inactive New
-Sort Lists by Column New
-Statement of Cash Flows Report New
-Unbilled Costs by Job Report New
-Alerts to Help Avoid Underbilling New
-QuickZoomฎ on Pay Bills and Receive Payments New
-Back Up Files to .Mac New
-iCal Integration Improved
Finally looks like a real update that gets closer to the Windows version.