IPv6 and home networking (including consoles) question

[Dogs Rule]

Hello.

I have been curious about the implementation of IPv6. Namely:

1. When do you expect IPv6 to be mainstream?;
2. Does the following equipment have what it takes to use IPv6:
   • Current routers that have been on the market for 2 years of less, (Linksys BEFVP41for example or combination modem/routers that ISPs lease out);
   • Current network cards that are found in computers and consoles;
   • Current category 5 ethernet cables; and
   • Current home consoles and handhelds?;
3. Can the same list of equipment be upgraded via a firmware update or will new network cards and routers have to be used?
4. EDIT: Will there be a noticeable network performance boost for the consoles if/when they use IPv6?

Thanks

 

P.S.: In case you don't know what IPv6 is: http://en.wikipedia.org/wiki/IPv6

If you had to follow the link to know what it is, then I guess you won't be able to answer my question. :)