Leaks of the next Ice Cream sandwich update have been circulating since early February, and Moto's Xoom was given the first taste today. Now Jean-Baptiste Queru, an engineer on the mobile OS, has posted over at the Android Open Source Project forums to let us know that the appropriate files are being pushed as we speak. Of course, this doesn't mean that 4.0.4 will hit your handset any time soon... or ever, for that matter. But, it does mean that more custom ROM devs will be incorporating its pile of bug fixes into their products. Watch the source links to be alerted the moment it goes live.