UK Daily Mail 
Feb 28, 2011
About 150,000 Gmail users have had their accounts deleted, including every email, application, contact and calendar information, Google confirmed today.
The problem first arose late yesterday when thousands logged onto their accounts, only to find all their personal information had been erased.
Many found that their accounts had been effectively reset, as they were greeted by the message Google welcomes new users with.
Their frustration swiftly found its way onto online message boards where they complained that everything had been lost.
One frustrated user wrote: ‘I have lost ALL on my emails/folders etc from Gmail. Why would this happen? How can I restore everything?’