[rm-rf]

A globally routable v6 network isn't too hard to do at home with tunnelbroker.net and similar services. A Dlink DIR-825 has enough v6 support to hold up it's end of the tunnel and route a /64. Clients (Mac, Windows, Unix's) 'just work'. Tunnelbroker does the hard part.

To move a whole enterprise is hard.

[ghshephard]

Moving a whole enterprise turns out to be remarkably simple. Most OS stacks from the last 5+ years have support for IPv6 - even windows XP allows a pretty straightforward upgrade. Enable the client stacks, Turn it on on your routers, and voila - your enterprise is now IPv6 enabled. Add it to your SSL VPN - IPv6 from home. The Dual-Stack capability really does make it bog simple.