The modern Internet is run by marketing, not technical, requirements.
IPv6 will not take off any time soon because neither the end-user nor the service provider sees the need. The moment AOL, Wanadoo, Tiscali, World Online et al shout out "we *need* IPv6" it will happen. Quickly.
In other words, you can lead a horse to water, but you can't make it drink.
(I wonder what AOL & friends are going to do when they find out that the apps won't use the IP version they made happen so quickly, though.)
So, is it time for some serious lobbying, or do we wait until half the applications out there suddenly stop working?
Wouldn't it be better to focus on providing the water and let the horse get thirsty in its own good time?
And out of curiosity, how many people here have migrated their entire network to IPv6 already to set a good example and show how it's done? Yes, thought so.
Sorry, but that one won't work on me. :-)