Snapchat introduces Groups for up to 16 people, builds Shazam music recognition into its apps

Snapchat has unveiled Groups functionality today, letting you participate in threads with up to 16 friends at once. Groups can be created when sending a Snap or making a new Chat. Chats sent to a Group are deleted by default after 24 hours, while Snaps sent to a Group can be opened and replayed once by each recipient. If a Snap isn't opened, it will disappear after 24 hours, just like Chats. When your friends are in a Group Chat, you'll see their name at the bottom. If you tap on that you instantly start a one-on-one Chat, and can easily go back to the Group with one swipe. This is...