The Nexus S ICS update seems to have been well received, but there have been reports of phones getting caught in computing loops, burning churning through battery life in the process. Google must have felt that the number of these incidences was too high to continue to roll out the update to everyone else, so it may be a couple weeks until the ICS-goodness starts to roll out to new phones.
Anyone out there that happened to be in the first round of updates? Let us know what your experience has been in the comments section.
Source: Google via Tech Crunch