According to the Inquirer we can expect the launch of a 2.8GHz Intel Celeron CPU on the 5th of November (hey that's my birthday!). They also mention a few Celeron price cuts :
But shortly before then, on the 26th of October, we'll see price cuts on the 2.5GHz, 2.4GHz and 2.3GHz Celerons.
They'll drop to $79, $69 and $69 respectively – meaning that the 2.3GHz chip is for the chop.