We all know the history of the Home button on iPhones. For those who never had this unpleasant problem where or never heard of it I will shed some light on this matter, because of bad usage some Home buttons stop working. If you have the money you could replace it but if your warranty expires, are you ready to spend some cash? A solution to this is to use Activator and to trigger with a gesture the Home button function or you can simply install SPTouch. This tweak is from the BigBoss repo, and you can download it right away from Cydia.
After installation this will place on your screen a square with rounded corners simulating a virtual button of Home button. This small square can be placed anywhere on the screen. The settings for this tweak are simple. You get the usual toggle to enable disable this tweak, a resizing function, color setup for your button and also you can set the transparency.
Remember that this tweak is not entirely dedicated to people with this kind of problem; it is good if you find another use for it.