The company regularly give employees the OS first so they can work out any remaining bugs in a "contained environment."
Employee Adel Saoud says:
Just got Ice-cream Sandwich update on my Nexus S & it's looking great
He then added:
Yeah an OTA, but it's an early one for Google employees so we test it further so it's even more awesome when you guys get it. So sadly I can't comment on it more at this time...
Written by: Andre Yoskowitz @ 4 Dec 2011 17:04