One of my favorite Mac developers dislikes the App Store...

http://www.rogueamoeba.com/utm/2009/11/23/airfoil-speakers-touch-1-0-2-is-now-available/

Links back to the ordeal they had using legitimate API calls and still having their app held up for months because of undocumented internal Apple processes that -- in this case -- arbitrarily managed to change for the better. (It's also possible for said processes to arbitrarily change for the worse...)