Since I got a Snapper phone in June, I've had mobile broadband at no charge each weekend. Wonderful! (During the week I have broadband at home or at work.) 2Degrees have created an addiction, and threatened Cold Turkey in three weeks. Oh woe is me!
The marginal cost of Zone broadband must be pretty close to zero, with little congestion over the weekend (it seems very fast). I wonder if they have considered something like $10 for 1 gig each weekend for six months!
(They have offered me a $19 data pack, that includes unlimited on-net calls (not 'free' as suggested in another topic) and a few National megs for $10 - which will keep me going for a month.)