I´m having the same problem.
The new mac wallet doesnt open, first it was complaining about not finding an updated Qt library, so I updated that, then it was complaining about not finding an updated libpng, so I updated that too, now its giving me this error log
I compiled this wallet "quick and dirty", and had no 10.8 or 10.9 box to test. Seems to work on 10.6 & 7 (I'm on 7). It needs to be recompiled using the 10.8 SDK when I have time...