Welcome it is quite normal when any major upgrade takes place on windows,apple Mac ,android or iOS that some apps do not work correctly
One has to be patient and wait for an upgrade. Contact the developer of the App first as it is their problem not Apple. Most app developers have had time to test there apps with beta iOS 6 so it should not take to long for the upgrade.
In other words it is not Apples fault
Sent from my iPhone using iPF.net