If you’re a ROM developer, then you know that source code is a good chunk of the proverbial sandwich that is ROM creation. For those developing on the Sony Xperia S, your peanut butter has arrived: Sony has now released the source code for ICS 4.0.4. The archive comes in at 132MB, and is available for download here. The whole thing is based on the v6.1.A.0.452 ICS firmware.
Any devs out there, be sure to let us know what you think in the comments!