IMPORTANT: There is several reports of the update actually wiping out existing set ups causing the need to pair up your account again before it works. Others report getting locked out. Avoid with extreme predudice until Google and Apple push out a fix
UPDATE: Google has pulled the app from the store. Phew! Hopefully it's back soon, and fixed!
For those of you out there who are making good use of Google's Authenticator for an additional security layer, you'll be pleased to know the app has now been updated and is available for download in the iTunes App Store.
The change log calls out retina support for the iPhone 5, an improved user interface along with improved accessibility improvements and finally, the typical bug fixes. Sadly, native iPad support is still missing.