typically there is no internet in the dome itself. Last year there was free wi-fi at the vex demo area, which i assume not to be there this year (since vex is already released). I would say your best bet at internet would be at your hotel.
As for Av patches i know they are offered at regionals, but have no idea about the championship because not everyone has access to the field of the georga done.
I can say that
www.soap108.com is probably going to be archiving all the matches on their website. Maybe you can just link to them after the event is over.
hope that helps.
Greg