You could even take mod_pagespeed and start selling your own competing optimizing proxy; it's open source.
(Evil idea: run an optimizing proxy in a part of the world with very slow or expensive-per-byte internet and make money via ad insertion or replacement.)
And so did this guy: http://vincent.bernat.im/en/blog/2011-mobile-browsing-conten...
You could even take mod_pagespeed and start selling your own competing optimizing proxy; it's open source.
(Evil idea: run an optimizing proxy in a part of the world with very slow or expensive-per-byte internet and make money via ad insertion or replacement.)