Development Discussion Board

According to my research, this feature is only available in the chrome nighties
OMG, what's your search engine ? :mrgreen:
http://en.wikipedia.org/wiki/SPDY
http://hacks.mozilla.org/2012/02/spdy-brings-responsive-and-scalable-transport-to-firefox-11/
On the server side, Strangeloop implemented it ...

We must be living in two different dimensions.
In mine, SPDY is already used by millions of users and will be used by at least a billion users by the end of the year.
Also, since i'm using phpBB since 2002, and according to my observations, I don't expect phpBB4 to be released until 2028 at best.

Forget about these CSS sprites already. This technic isn't flexible at all.
PHPBB could be optimized by server admins by using SPDY, which is already available in Chrome and will soon be in Firefox.
mod_spdy for Apache is already stable enough.

Look, PHPBB releases are rare. It takes years and ...

Please don't do that, be patient and wait for ressources packages to be implemented
http://limi.net/articles/resource-packages/