Apple pulls iOS 8.0.1 after users report problems with update

The Verge:

The new update is reportedly killing cell reception and Touch ID

 

Apple:

We have received reports of an issue with the iOS 8.0.1 update. We are actively investigating these reports and will provide information as quickly as we can. In the meantime we have pulled back the iOS 8.0.1 update.

 

Update 1:

Rene Ritchie posted a fix on iMore.

 

Update 2:

Apple has issued a support document with instructions on how to downgrade to iOS 8.0 and says a fix is coming in a few days.