BTW, I just helped push things so that Ubuntu 12.04 will ship with OpenSSL 1.0.1.
This means that TLSv1.1 and v1.2 support will be widely available to libraries and binaries that use OpenSS which will hopefully get people off of SSLv3 and TLSv1 sooner.
That's fantastic news. It'll be so much easier if NPN is available in Ubuntu proper. Huge thanks!
In short, with SPDY your server will push all related files like images to the client when it requests the page. Currently this is done by sending the page, having the client read it, and then the client requests all the later files.
The coupon code for the free book doesnt work anymore