Google released its Android 4.0.4 updates for the GSM Nexus S just a couple of days ago, but for users with Sprint's version of the phone it's been a long wait for Ice Cream Sandwich. Thankfully, BriefMobile has posted what it says is the official over-the-air 4.0.4 ROM for the WiMAX-enabled Nexus S. Along with the newest version of Android, the update has a new baseband that early adopters say has significantly improved WiMAX reception. The site promises that the update will be released OTA for the Nexus S 4G soon, but we've been here before — two months ago a similar 4.0.4 ROM for the device was leaked. If you're not convinced that the update is coming soon and you're aware of the risks, check the source link for the installation instructions. We just hope that the update gets pushed to all users soon — the Nexus S 4G for now is holding the unenviable title of Google's only Nexus device without Ice Cream Sandwich (other than the Nexus One, which isn't slated to receive the update).