Now we're talkin !!
So far we have :
1) Better Graphics Card (PCI Express)
2) Surround Sound Card
3) TV Tuner Card (iTV)
4) Upgradeable components with removable back (can't believe older iMacs did this but they changed it for the new models, WTF !!)
5) Fan/Temp Sensors
6) Faster SuperDrive (eventually HD/BluRay compatible!)
7) Ports/Jacks mounted underneath
8) Ability to turn off just the screen (can't believe this isn't there!?)
9) Available in more colours and with smaller "chin"
10) Pull-out Carry Handle
11) More Screen Inputs (DVI)
12) Memory Card Readers
13) Swivel/Raise/Lower/Portrait Move-able Base
14) Cheaper & Quieter
15) 2nd Hard Drive
16) "Glossy" Screen with faster Response Time
17) Powered USB Keyboard
Plus my own gripes
18) Adjustable iSight with Lens Cover
19) Forward Firing Speakers
20) Sexy Blonde Nymphomaniac included with AppleCare
If mankind can split the atom and put a man on the moon - than all the above should be frikkin possible too .....