Did you notice this? Gmail has got a brand new favicon! See the screenshot below -
However when you login to Gmail with your Google Account, you still see the old favicon with a red envelope. May be the new one is being rolled out slowly.
Update: In fact this favicon is as well being used by many other Google Services as well.
Каталог запчастей Реинз. Запчасти для грузовиков
I don’t like the new blue “g” favicon, I liked the old one, but oh well … things change, right?