Registration will open from 2pm-5pm on Sunday 11th Jan - it will be on level zero of the University of Auckland's Owen G Glen Building on Grafton Road. Thenceforth it will be open, in the same location, from 8am on Monday, Tuesday and Wednesday. It's a really good idea to register early, as registration on Monday will probably be really crowded.
If you are new to linux.conf.au, there is a welcome and briefing session on the Sunday new comers session that may interest you. This will be at 5 pm on Sunday in the Fisher and paykel Appliances Auditorium.