Recently Google started people with Google accounts to update their birthdays, promising a surprise --> https://plus.google.com/u/0/116113014152499702246/posts/

Recently Google started people with Google accounts to update their birthdays, promising a surprise --> https://plus.google.com/u/0/116113014152499702246/posts/9SF8SvKaQUC https://plus.google.com/u/0/116113014152499702246/posts/9SF8... So I think a personal Google doodle is that surprise.