Well, that didn’t take extensive. Sprint may not have opened its concede icebox just yet, but thanks to a BriefMobile rise, Nexus S 4G owners can protuberance themselves Ice Cream Sandwich anyway. While there have been previous efforts, BriefMobile says the leak contains the full, official ICS update, what one. will be delivered to handsets OTA soon. Of course, if you can’t wait the position has full installation instructions. Hit the rise link below to get started.