A large portion of them could be sped up by simply configuring them properly, using nothing but the facilities that are available today. Probably true, but not

A large portion of them could be sped up by simply configuring them properly, using nothing but the facilities that are available today. Probably true, but not relevant to SPDY: you can't assume that every website in the world is going to be configured "properly." SPDY's improvements are orthogonal to other improvements that might be made to site configurations.