The Google discussion groups are a flame with users reporting outages of Gmail accounts across the world. I too was hit by the outage for about an hour but luckily it seems to have sorted itself.
This isn’t the first time the service has been struck by outages, the last one started in a European data centre and spread world wide. Let’s hope that the issue’s resolved quickly and everyone’s re-connected, I know how you get when you can’t get your email, twitching and all. Still that’s what you get for using a ‘beta’ service.