In an effort to get owners of its smartphones to actually use ChatON, Samsung has thrown numerous features at the messaging app to see what sticks. For instance, it's just gifted inveterate file sharers with 1GB media transfers and given FourSquare types the ability to divulge their position and route via Glympse. But it also came up with a feature that may resonate more: the ability to cancel a missive. Provided you're in a one-to-one chat, you can now tap the message bubble and hit "recall" to delete a text on the recipient's device, even if they've already read it. Samsung says that'll be handy if you text the wrong person, but we know what that feature's really for.