This morning I my Outlook 2010 program had a pop-up windows asking my to enter my Gmail credentials:
I did, but I still was not receiving my Gmail messages. I was, however, sending and receiving email properly through Outlook 2010 for all my other email accounts. I also checked and verified that I log into Gmail’s web site properly and access my email that way.
I’ve contacted some of my peers, and they say they have received calls from some of their customers with the same issue.
So I suspect there is either a temporary outage or issue or possibly an upgrade with Gmail’s service. Not sure how widespread it is, but one person in London told me that his smartphone popped up requesting his login credentials.