TweakTown reports Google is encouraging a switch from HTTP to SPDY, claiming the new protocol offers significant speed gains:
Relying on the company's benchmarks, I can say that mean page load times on a Galaxy Nexus are 23% faster with the new system. Google hypothesizes that even more speed can be gained with future optimization. Google has already implemented SPDY in Chrome and Mozilla in Firefox. For once, even Microsoft seems to be on board.
So, as a way to transition, Google is proposing an Apache 2.2 module called mod_spdy. This module would allow web servers to take advantage of features such as stream multiplexing and header compression. HTTP, you've been good to us, but it appears that it is about time for you to go into the history books.