Looks like zen with a funky header on top! I like the analog clock though! You can probably make one similar in the theme builder. Don't know how they got the clock beside the time! Someone else can probably elaborate more....that's all I can say.
I know this has been asked previously I forget where, possibly at Crackberry.com but it was determined that it likely was a graphic art and not a theme. I think you may find something similar at one of the theme sites.