Here is a list of publicly released, third-party templates. There are also many more that you can find available at EE Templates Library as well as EEDesign.
Ocean Mist (Demo and Download) (updated to version 1.2.1 on April 3rd, 2008) - (Thread)
Hemingway (Demo and Download) (updated to version 1.0.1 on April 3rd, 2008)
Salmon (Demo and Download) (updated to version 1.0.1 on April 3rd, 2008)
TealTemplate - (Demo)