iOS 6.0.1 has now been released and will have the following updates, mentioned earlier.

• Improve Wi-Fi support
• Fix cellular data not working in some cases
• Add a consolidated cellular data witch for iTunes Match
• Fix a bug that caused Microsoft Exchange meetings to be unceremoniously cancelled for entire calendar invite groups
• Fix the horizontal lines bug on the screen that comes up when the keyboard or app folder is opened
• Fix a problem with the camera’s flash not going off