Mac OS X 10.6 Snow Leopard Compatibility List
 

If you are upgrading to Snow leopard this should be helpful.

Snow Leopard Compatibility: Mac OS X 10.6 Snow Leopard Compatibility List

Why bother upgrading the current OS work just fine?

I'm still running 10.4.11 with zero issues, I didn't even upgrade to leopord yet myself.

I was running 10.4.11 and decided to upgrade to 10.5.8 last night. I just stacked OSes because I didn't feel like backing anything up. So far, no issues. Thinking I may give 10.6 a shot in a couple of days.

There are pros and cons of course. But upgrading has it's advantages
and at $29.00 if there are more positive benefits then the question is "why not"?
Faster, Bigger, Longer: How Snow Leopard Will Improve Your Hardware | Gadget Lab | Wired.com

So far so good. Snow Leopard is working fine for me, but I don't have any mission critical programs on the Mac. Safari and Mail program definitely much faster and even Finder seems snappier. I like the new Expose and "scrollable" stacks is great ideal.

I'm amaze on how easy it is to install the the OS upgrade on a Mac vs. Windows...

Don't stir up a hornet's nest.....:rofl::rofl:

You mean like this...
Analyst: Apple Snow Leopard Upgrade Aims at Microsoft | John Paczkowski | Digital Daily | AllThingsD

Maybe I should update the parents computer from vista to windows 7 at the same time as upgrading my mac to snow leopard... see which one makes me want to pull out my hair. MAc = :bow: PC = :pullhair:

Try updating from Windows XP to Windows 7:wow:....However, Windows 7 does look promising as far as Windows goes...