A couple things that Macs could adopt from Windows and PCs

There are a few things that I would love from the Windows world to be on my Mac:

• Ability to hibernate.  You don't want to put your Mac to sleep and put it in your laptop case.  With a Windows-based laptop, you can just hibernate.  It saves where you are at and completely shuts down your computer; however, when you restart, the computers comes back to where you left off.
• Resize windows from every corner and every side.
• Delete key (that deletes in back of the cursor), Windows has Delete and Backspace.
• Active Documents - Windows 7 (Vista too) has preview of every document that a program is running when you hover over its icon on the taskbar (Dock).  I substitute with F9 to find what I have out there on the Mac.  (I learned you can click and hold on a icon on your Dock to see everything that is running on that program).

But the stability and speed of Mac, including all the other features the Mac OS X has more than makes up for these little features in Windows.