Leopard

I was provided with a copy of Leopard (thanks Sjon) so that I can try what it can do.

Installation - really smooth. no more that 3 next clicks. I did not watch for installation time. But I guess it took around an hour on my Mac Mini G4 1.42MHz

Desktop - really nice. Eyez candy all around. But it seems more dark to me than Tiger.

Spaces - really appreciate this feature. I've missed it since I switched from Linux to OS X

Stacks - looks nice. Did not have much time to use it so far

Quick look - that's something. Really love it.

Finder - looks better, improved. did not test it much yet.

Time Machine - don't have spare external HDD to be able to try it.

Performance - it's more memory hungry. I suppose because of all these eye candy stuff. But it's quite speedy. So far I did not experienced any big performance issue.

It's really nice unfortunatelly I don't have money for it in our budget. I'll have to stick with Tiger because I don't want to steal software. May be someday next year.