Here are a few of my AutoCAD 2008 favorites:

• Windows Vista Support
• Multiple Mtext Columns
• Viewport Layer Freeze
• Auto DWF Publish
• Ability to change multiple copy default
• Easier Way to add layouts to Sheet set manager
• Manipulating Layout tabs
• Publish and plotting - homogenous plot file
• Tool Tips for Dynamic Block grips
• Activate palette when object is hovering over a tab
• Support overriding tool icons in Palettes
• Ability to redefine blocks through tool palettes
• Tool palettes command line access
• Materials enhancements
• Trim Fence Option changes
• SSM reverse publishing order
• Command line render support
• Tool palettes: saving tool order
• Osnap to 3D solid while it is dragged
• DWF Underlay – Layer Support
• Perspective horizon updates
• Inverse Xclip
• Layer Isolate Command by dimming
• Recover for Xrefs RECOVERALL
• Dimensions: multiline text and alternate units
• Multiple Leaders
• Table Enhancements
• Insert blocks and text in the same table cell
• Spell Check Improvements
• Paragraph Spacing in Mtext
• Independent LT scale per viewport
• Leader text to scale when dimscale changes
• Separate Ltscale control in layout
• Layer states and viewports-display differently
• Table formats: number, currency, excel formats
• Autofill cells along rows or columns
• Allow new layer notification in Xrefs
• Spell check dimension
• Automatic DIMDLI

:-)