Gmail is at it again. In the past, you could get stickers from them or have them send someone a holiday postcard. Now, they have a game based on Gmail. Galactic Inbox is an HTML5 game designed by Google Creative Technologist Paul Truong which allows you to control a Gmail envelope which shoots such hazards as trash, spam, and old email systems which only limited you to a 2 MB inbox. Galactic Inbox is perfect for a very brief afternoon diversion and also as an exploration of HTML5. To play the game, you will need to be using a browser that supports HTML5, such as Google Chrome.