I've found some other threads discussing the fact that the default shortcut for Facebook is actually just a shortcut to a browser bookmark for Facebook. If you delete this shortcut, you can re-create it, but it has a boring red flag icon. With a custom bookmark app, you could restore this original icon... but only if you know where to find it. Where is that icon stored? It has to be somewhere on the root of the phone. Using root explorer, I can't find it. I'm guessing it's stored inside of an archive somewhere. Any ways to search more thoroughly? Related: can I somehow use my PC (Windows explorer) to browse the root of the phone? Or, can I find it somewhere in the original .tar file containing the flash update for the phone? (running rooted 2.1 DD10, FWIW).