While it is no doubt that the iPhone is one revolutionary smartphone, there is still a lot of small features missing from the iPhone. An example of one such missing feature,  is the ability to copy contacts from your iPhone, directly to your SIM card. While you can copy contacts from your SIM card to your iPhone, you cannot do the reverse of this process and transfer contacts from your iPhone directly to your SIM card.

Luckily a new Cydia tweak has been developed to get past this limitation and it is called SIManager. This Cydia tweak allows you get past apples limited SIM card functionality; by allowing you to copy SIM contacts to and from to iPhone, modify and delete contacts, and even backup and restore contents on your SIM card.

SIManager_tweak

If you are looking for a tweak to extend your SIM card functionality, then SIManager is the tweak for you! SIManager is even available free via Cydia through the BigBoss repo. Let us know your thoughts if you are an avid user of SIManager.