Kuwait had a similar dream in the 60's. Flush with oil money and the increasing air-conditioning of households, someone came up with the idea that it would be easier to aircondition the whole city instead. They wanted to build a dome that would enclose the entire city and make the hot summer months bearable. Fortunately, that just fizzled out.
SMTP, that grand-daddy of email protocols, was designed to be a client-server system with a large number of servers. HotMail changed all that and concentrated the servers in the hands of a few. With PGP at the client end and more server end-points we could improve the situation considerably. To fool metadata collecting systems every forwarded email transaction should also send dummy messages to two other random servers that will presumably get rejected.
You pay by handing over your email conversations over years, ie your soul.
How will the ruling affect web sites that offer public domain content but use SSL?