Link: Dylan's FREE Blackberry Themes: Bold Theme: Two
This theme has a very simple homescreen with just 2 icons. The intention was that those be for Profiles and Weather, but they can be used for any 2 applications you would like.
As you can see in the screenshots your 2 homescreen apps will also show on your lockscreen.
Here is a screenshot. There is a bunch more at the download link.
Also be sure to check out all of my other themes: Dylan's FREE Blackberry Themes