To can you understand my question I will give you example with windows XP.
The desktop shortcuts in winxp are stored in folder C:\Documents and Settings\User\Desktop. If I save this folder and later I lost all shortcuts I can restore it.
I have this problem with the apps shortcuts in my phone home screen. My question is where is the location of this folder, where android store the shortcuts in the home screen?
My phone is root and I have root explorer installed.