Techmell.com - A developer Adam Bell has launched Cydia Tweak’s beta version known as MessageBox. It provides you the chat heads function for Smartphones. The people who are not well versed with this feature should know that it is a Facebook feature that presently supports only the Android devices. If you love visiting social sites like Facebook, it will be greatly beneficial feature for you. If you want to try this amazing feature on your iPad, iPod and iPhone that is jailbroken, you can follow the steps below.