We've known for quite some time that Motorola intended to push Ice Cream Sandwich to the Droid 4, but until now the waiting game continued, with no end in sight. It now appears that the smartphone maker is making serious progress on its own Motoblur-infused flavor of ICS, with a stock version of the upgrade making the rounds since last night. According to early adopters, the build seems to enable complete functionality, but upgrading early will leave your device locked to 4.0.4, with no option for future updates. So
