This is fantastic news! Hopefully this means that the price of taking things to orbit will fall rapidly (relative to what governments could achieve, at least), allowing all kinds of new developments that couldn't otherwise have happened.
Similar prices for GTO of up to 4500kg, but presumably a lot of that is going to be fuel to move from GTO to GEO; since the Delta IV can (and does) take multiple satelites to GTO at up to 12000kg, I'm not sure how favorably that is going to compare (nor do I have any first hand knowledge of launch prices for something as big as a delta IV.
[edit] Just noticed the footnote on above page that at $45M for <3000kg to GTO they want to book a co-passenger, so presumably the ~4500kg limit is enough for at least 2 satelites + fuel.
"December 23, 2008 – NASA today announced its selection of the SpaceX Falcon 9 launch vehicle and Dragon spacecraft for the International Space Station (ISS) Cargo Resupply Services (CRS) contract award. The contract is for a guaranteed minimum of 20,000 kg to be carried to the International Space Station. The firm contracted value is $1.6 billion and NASA may elect to order additional missions for a cumulative total contract value of up to $3.1 billion."
http://www.spacex.com/press.php?page=20081223
and:
"The $1.6 billion contract represents a minimum of 12 flights..."
The only way to break this cycle and bring down costs is to 1) Not deal with the government and find a private company willing to take on the risk of development. 2) Change the model of the program entirely and operate like the Russians--i.e, Pick one launcher and make that one as efficient as possible.