TypeStatus is a new tweak which lets users be notified when someone starts typing an iMessage to them, whether it is from iOS or a Mac. The tweak also works on both platforms so you can get the notification no matter which iMessage supporting Apple device you use.
TypeStatus shows a small notification when a user starts typing out an iMessage to you or when it is marked read. The notification is non-intrusive and works similarly to how Snapchat shows notifications when someone starts typing a message to you.
Due to its nature, TypeStatus is available as a tweak for jailbroken devices. For Mac, it can be simply downloaded as a DMG and installed on OS X 10.8 or later versions.
To install on a jailbroken iPhone, iPod touch or iPad, simply go to Cydia, and search for TypeStatus to install. On a Mac, you have to download, install and enable EasySIMBL first, which is not too difficult. Once done, drag TypeStatus.bundle to the EasySIMBL window and restart iMessage to complete installation.