ImBen has released a free Leopard (Mac OS 10.5) like theme for most of the new BlackBerry OS 4.2.1 devices. The theme comes in two flavors, one has a today screen and the other does not. Personally I love certain parts of the themes but wish others would be better. The theme has a great font that is small but is still easy to read. It also has a very clean looking today screen. On the other hand there it does not show the date on the today screen and the applications folder is not organized the way I like. Also there is a bit of space on the side of the application screen that should be centered. ImBen has also been gracious enough to provide the source files for the theme so you can actually edit it and make your changes if you are so inclined. Check out the links below or the original posting by ImBen on BlackBerryForums for more information. Thanks again to ImBen for the free theme!
Source Files: Here