Google was rumored to unveil a new Nexus smartphone at I/O 2013, however the company did not even say anything about a new device. Instead they announced the “Google Edition” Samsung Galaxy S4, which is essentially similar to the conventional Galaxy S4, the major difference being that it runs on stock Android. The device itself has not been released, but it is believed that Samsung might have already posted its kernel source code. Files for GT-i9505G were spotted recently on Samsung's open source website.
Ubergizmo , GT-i9505G Kernel Source Code Released, Thought To Be Google Edition S4, GT-i9505G Kernel Source Code Released, Thought To Be Google Edition S4