As we all remember, Google generally have something or the other for April fools day.I was waiting to see the one for 2008 but what I noticed that this time its not 1 or 2 jokes.Here is the list of jokes for April 2008Gmail: Custom timehttp://mail.google.com/mail/help/customtime/index.htmlGoogle Calendar: Google Wake Up Kithttp://www.google.com/googlecalendar/new_wakeup.htmlGtalk: Goes greenhttp://googletalk.blogspot.com/2008/03/google-talk-goes-green.html