The timing and wording of Google's press release, however, immediately generated speculation on online forums that the news was an elaborate April Fool's prank by Google.
Google spokesman David Krane, reached Wednesday night, admitted that the "color and personality" of the press release -- which is dated "April 1 UTC" and includes phrases such as "millions of M&Ms later, Gmail was born" -- "was indeed in the spirit of April 1" but said that Gmail was a serious product.
"We are beginning to test a free e-mail service," Krane told MSNBC.com.