Those of you familiar with the Facebook application probably remember the "Chat Heads" feature that the company used in the Facebook application for a long time before forcing users to migrate to the standalone Facebook Messenger application to use the messaging feature while mobile. Many developers in the jailbreak community did wonderful things with the Chat Heads functionality, and one specific tweak called MessageHeads
even brought Chat Heads-like functionality to the Messages application.
New to Cydia right now is a jailbreak tweak called AppHeads
by iOS developer sharedRoutine. This tweak takes the core idea behind Facebook's Chat