Nightmare on Elm Street can't compare to my last 24 hours.
I don't know who said what, but people:
When you purchase software, be it WIN 7 or Adobe or whatever or even a new video card, there are minimum requirements on the box. Office 2010 has minimum requirements. But, upgrades DON'T and SHOULDN'T require upgrades to your hardware.
Imagine Adobe updating to 11.0, and you have to buy a faster processor. Or Firefox goes to 5.0 and you need more RAM. Granted, there are exceptions as with a major upgrade XP Pro to WIN 7, but even then. Do you think it is in Microsoft's best interest to put out an OS that will only work on an i5 or higher?