Just so you know, your mini won't come with any mouse (or keyboard) unless you add it into the order. Minis don't include a mouse or keyboard in the default purchase price. Like the previous poster said, you can add the Mighty Mouse with a wired keyboard for $78.
i don't think apple gives the mouse away for free with mac when they can make $49 of it. there is only hope for some bundles to get it cheaper. i'm sure there will be because i'm waiting, expecting, demanding, praying for a price drop on powermacs soon. they often don't reduce the price but rather throw some extras in like bluetooth or this mouse.