http://itunes.apple.com/us/app/fantasy-football-draft-monste...
http://itunes.apple.com/us/app/fantasy-football-draft-monste...
Do you know why? Because overdesigning SELLS. My iPad app is currently ranked top 75 overall and my iPhone app has been in the Top 100 overall. With 400K apps in the app store, having a unique looking UI will attract more people to try it.
I totally agree with having good UX and being consistent with the HIG, but the user can't appreciate that until after they've purchased the app. So if you want to actually sell a few copies, then suck it up and pimp out your UI. You'll be glad you did.