Great article on spectrum sharing:
http://sify.com/finance/mobile-cos-back-proposal-for-spectrum-sharing-news-telecom-jgimjqhdhbd.html
Would this be legal in New Zealand and how would a wireless carrier like 2degrees or vodafone or telecom do this?
Be good in places where vodafone doesn't have coverage and 2degrees does so vodafone users can use 2degrees spectrum and vice versa.