Hi brasik,
Thanks for visiting Apple Support Communities.
It sounds like you've updated your iPhone 5 to iOS 8.0.2, and now applications are unresponsive when you try to launch them. That's an unexpected result of updating, and I can definitely see how it's frustrating.
Since the situation stays the same after restarting your phone, I'd recommend another step to help isolate the issue.
As mentioned in the troubleshooting guide iOS: An app you installed unexpectedly quits, stops responding, or won’t open, try reinstalling one of the apps that isn't launching.
- Delete the app.
- Press the Home button.
- Go to the App Store and download the app again.
- Wait for the app to download, then open it from the Home screen.
If the download stops, you can resume it.
If Apple applications (such as Mail, Newsstand, or Safari) are becoming unresponsive, I'd recommend backing up and restoring iOS using the steps in this article:
Use iTunes to restore your iOS device to factory settings
Best Regards,
Jeremy