"HTTP is stateless, which means for each request client has to create a new connection with the server."

That's not what stateless means. And unless I am gravely mistaken, HTTP over SPDY is still stateless.

Could somebody clear this up for me (I've seem to forgotten it): I know you can run a HTTP and SPDY "versions" of your webpage in parallel. But how does the browser know which protocol to use (if it supports both)? Does it initially make a HTTP request and the server responds with some header that let's it know it can use SPDY or what?

Any expert ready to venture a guess on how fast SPDY could be adopted by most of the biggest websites on the net? Could it spread like wildfire when all the main browsers and web-hosting softwares adopt it, or are we talking about years and years (like getting rid of IE6)?

Google Chrome could not find laktek.com

App Engine will serve SPDY from https automagically.