If you have not heard the news, Google screwed up their iphone app. If you were unlucky (like i was) and updated to the latest version it wiped all of your accounts. I didn.t get hit too hard, I only lost access to two WordPress blogs. Below is how I quickly fixed it.
Login and/or SSH into your host (This will be different depending on your hosting provider) and gain access to your database.
Get a list of all active plugins.
You are going to want to save this value (makes things easier later).
Clear the active plugins.
You may now log into your WordPress blog without Google Authentication. Now you have two options here. Go back and use the WordPress GUI to re-enable your plugins OR if you saved the value from step 2 above you can do the next step.
Quickly re-enable your plugins.