In the latest update about the upcoming Mew-Genics, straight from Super Meat Boy developer Team Meat, we learn that the game will allow players to receive mail, and some questionable facts about cats.

Mail in Mew-Genics will keep you up to date about what's going on with your friends and enemies, and allow you to take part in events like cat fights. Team Meat also said in their blog that a group of kittens is called a potato mob. I'm guessing they known what they're talking about, so I choose not to question them.