In regard to Apps showing as a folder and Downloads showing as a stack, in my experience I'd say this is because when using the applications folder you'd want to see all of them at once, but with downloads it's usually only the last downloaded file, or the last few that you're after. When you click the stack you get the most recent closest to your mouse.
Post: Great preview
Rob 86
Great preview →
Posted Tuesday 25th August 2009 16:18 GMT
In Mac OS X Snow Leopard First Look
In regard to Apps showing as a folder and Downloads showing as a stack, in my experience I'd say this is because when using the applications folder you'd want to see all of them at once, but with downloads it's usually only the last downloaded file, or the last few that you're after. When you click the stack you get the most recent closest to your mouse.