My ticket was answered by a GM but he has directed me to email billing. I'm currently awaiting a reply from billing on the issues of tunneling. I do believe Jamien is correct in 'flagging' of IP addresses. My email to billing raises this question as a potential bannable offense. I'll post more as soon as I've recieved a reply.

As for multiboxing through the tunnel... I installed & setup the tunnel software on all my (multiboxing) computers last night and had a good old play with it. The only issue (and its a very small one at that) is you can't use Octopus / Keyclone to 'maximize' the WoW window, you have to start WoW from within a tunneling program, in my case its an applicationed called FreeCap. If its not started via this software then it does not use the tunnel, and thus defeats the purpose. I had all my girls running around questing in and it worked flawlessly!! Its amazing how much more responsive the game is, it 'felt' so much smoother and more controllable.

I did a brief search of google and found many tunneling services, most of those I looked at were located in Australia. The only Australian service I tried gave me a higher ping than I normally have, I was sitting around 700+. In fairness it was a trial account I used and the pipe queue was indicated as being full. The (FREE) service I've been using wowtunnels.com, is infact located in Australia. And to my amazement my ISP (Slingshot.co.nz) will soon be offering the same service in New Zealand. A statment from a staff member ... "we are not aware of anyone being banned by using our beta WoW tunnel service. Blizzard should not have an issue with ISPs providing a service to improve WoW, but it is Blizzard and their ToS can be changed when they see fit."

I will continue to use the free tunneling service I've been trialing until a) I hear from Blizzard and they say NO or b) My ISP officially release their own.

Oh, I also implimented the registry changes mentioned above and it did indeed make a difference to my in-game ping. I'm using Vista 64bit btw. Without using the tunneling service (and after the registry change) my in-game ping is now only 380-450 ms.