iOS 6.1.4, iPhone 5, iTunes 11.0.4.4.
It seems there is a problem about hiding purchased apps, even via iTunes (new version).
With iOS 6, there no way to delete or hide any useless purchased apps with your iPhone, but you were able to do it with iTunes. After the software upadete, however, it seems that a problem with deleting these apps via iTunes appeared. The smal (x) over the apps (in the PURCHASED > APPS folder) seems not to hiding the apps.
What is going on!?