What is TubeFixer?
TubeFixer is a simple package to "fix" the YouTube app built in to iOS 2 through iOS 5.
This does not modify the YouTube app in any way and it does not require Cydia Substrate, as it just adds a line to your hosts file.
Current Version: 1.1
Install it and you're done!
After installation of the package, the YouTube app should start functioning again!
To remove TubeFixer, simply uninstall this package, reboot and your YouTube app should return to its normal state.
To run on iOS 6, install a YouTube app port. "Classic YouTube App" from apt.tekwik.com is the only one that is fully tested, but it should work on any port.
Note that TubeFixer may not work correctly on some retina devices.
It is also reported that it breaks the App Store YouTube app in some cases, however I can not reproduce this error.
In some cases, videos will error out saying "You are not authorized". I can't seem to be able to find out the root of the problem, so it probably will not be fixed.