I started notice that one of my Gmail account stop working on third part email client. After that the email stop working on Gmail app for Android.
Now it stop working on browser in Android.
Still the Gmail is working on my Windows 7 desktop computer.
2012-08-15 my second Gmail account is starting to have problems..
Google information about the error
If there is major attack on Google mail service the best you can do is to change your password, well that is almost all you can do…
AFTER CHANGING PASSWORD my email start working again!