Tiger now takes screenshots in the PNG format. It’s far lighter than the PDF of Mac OS X 10.3.
And it’s none too soon.
Various effects won’t be available for everyone. For instance, when you add Widgets on Dashboard, there is a superb “droplet” effect if you card supports CoreImage (64MB VRAM minimum).
Copying this here so I can try to remember it when I choose which Mac I buy. Not just for Dashboard’s droplets, but for every effect you’ll lose in the future if you haven’t got the best video card in the world.