I read an interesting article at Slashdot about HTTP/2.
As you can read in earlier posts, I don't like SPDY. It's a protocol by Google, for Google. Unless you are doing the same as Google, you won't benefit much from it. The main reason SPDY was taken as a base for HTTP/2 is because the W3C was too indolent to do its job. Many things that are wrong with HTTP/1.x are not solved in HTTP/2. Specially all the things that make a webserver unnecessarily complex.
For example, the feature called pathinfo. URL's are still ugly and it requires the webserver to search for the actual CGI script. A better solution is URL rewriting, but using regular expressions for it is also not very efficient. Many CMS's and frameworks require a long list of rewrite rules while they should all be replaced with three simple rules:
These simple rules allow you to use clean URL's and are very easy and fast to implement.
I know HTTP was meant to be stateless, but all webbrowsers use a separate connection for every website. Even if those websites are served by the same webserver. Therefor, a lot of the same HTTP headers are sent over and over again. This can be improved. Also, why send a separate request for every file? Why not let the browser specify a list of files which the server can then send in one stream?
We have CGI, FastCGI, SCGI, WSGI, etc, all doing the same thing. Why not choose one as standard and drop the others?
Take a look at all the modules available for Apache. The amount of crap that many web developers want to put in their web application are not going to be fixed by SPDY. The only reason Hiawatha offers reverse proxy functionality is because several web application developers thought it was a good idea to make their application speak HTTP instead of (Fast)CGI and users wanted to run that shit with Hiawatha. You want things to be faster? Start by making things more simple.
Anyway, I think we don't need a new protocol like SPDY. What we need is HTTP/1.2 in which the unnecessary junk is removed, the gaps are filled and things are made more easy.