Well in that case, here's hoping I can make it too, then if you wish to set up a bit more "LAN", I can borrow a few bits from work and set up a router, to be plugged into the venues interweb somewhere, and a few switches, so that the LAN area is then isolated (and firewalled) from the venues connection, but will share it for access to the net, if that can be arranged (I can even restrict it's bandwidth if the venue are uneasy about the amount it may get used. A few more devices can then be used for alternate uses, I could possibly also set-up an event only wireless AP with code to be given out with name tags. (the channel for that will depend on what the venue uses so as not to conflict, but I can change that on the fly after a quick scan with a cool app I've got).
(that's 20 mins work for me what will I do the rest of the time LOL)