As far as I know they're still in effect, those publishers have seen their ebook sales go down substantially, which is blamed on the enforced price increases due to agency pricing.
And you'd otherwise see Amazon's return to its old scheme where normal ebooks never cost the consumer more than $9.99, whereas, to take a random example I just looked up, Jim Butcher's latest novel published half a year ago goes for $13.99, ~$1.50 more than the paperback and only ~$2.50 less than the hardback: http://www.amazon.com/Cinder-Spires-Aeronauts-Windlass/dp/04...
And you'd otherwise see Amazon's return to its old scheme where normal ebooks never cost the consumer more than $9.99, whereas, to take a random example I just looked up, Jim Butcher's latest novel published half a year ago goes for $13.99, ~$1.50 more than the paperback and only ~$2.50 less than the hardback: http://www.amazon.com/Cinder-Spires-Aeronauts-Windlass/dp/04...