Ever wanted to type or sketch something quickly right there, on the Mac OS desktop, without first opening an application for it? Well, Conjure (now at v.4.1) offers you just that. You can do more than type or sketch, too, but actually brainstorm with mind maps. The new version is Snow Leopard compatible and offers new backdrops, a Knife tool "for cutting anything", and more. See the company's website for video demonstrations and a free trial version.
(Macintouch) | Cost: US$25 | Requires: MacOS X 10.5+ | For further info...