Earlier speculation hinted a Pixel - focused media event would happen on October 5th, however, a billboard has popped up in Boston, which was first spotted by DroidLife, states the tagline «Ask more of your phone» and «Oct. 4.»
Faria et al estimate that it probably didn't happen during the 2014 World Cup, as much previous
speculation had
hinted at, but was mostly likely several months
earlier at least.