iOS 8.0.2 was sent out via a OTA (Over The Air) update which fixes the same issues as 8.0.1. One new fix over 8.0.1 is that it fixes the cellular network not connecting issue that some users experienced along with fixing TouchID not working.
The official iOS 8.0.2 update notes:
This release contains improvements and bug fixes, including:
Fixes an issue in iOS 8.0.1 that impacted cellular network connectivity and Touch ID on iPhone 6 and iPhone 6 Plus
Fixes a bug so HealthKit apps can now be made available on the App Store
Addresses an issue where 3rd party keyboards could become deselected when a user enters their passcode
Fixes an issue that prevented some apps from accessing photos from the Photo Library
Improves the reliability of the Reachability feature on iPhone 6 and iPhone 6 Plus
Fixes an issue that could cause unexpected cellular data usage when receiving SMS/MMS messages
Better support of Ask To Buy for Family Sharing for In-App Purchases
Fixes an issue where ringtones were sometimes not restored from iCloud backups
Fixes a bug that prevented uploading photos and videos from Safari
For information on the security content of this update, please visit this website:
http://support.apple.com/kb/HT1222
Users have not had any issues with iOS 8.0.2 so, it is safe to update!