How you can start?

In general
Raise awareness, educate, advocate

Customer appliances
Coordinate with ISPs, deploy IPv6 into the products
Design products with IPv6 in mind - it will give you various advantages
Game consoles are good place to start - you can include the whole IP stack into CD/DVD

ISP - deploy IPv6 network, start IPv6 services
Even if an experimental one, important to make it available
Otherwise customers cannot use it

Server farms/service providers
Make sure your server/services are IPv6 ready