Gmail extends emoticons with Emoji
Gmail has added Extra emoticons called "Extra Emoji" in your labs panel. According to CNet News:
When flipped on it adds an additional 1,200 or so to Gmail's emotion selector tool. New categories include things like national flags, more animals, road signs, and animations.

According to Gmail:
All of these extra emoticons are straight from the secret underground labs of some of the top Japanese mobile carriers, used with permission.
- Gmail