just letting you know ive been told that TXT 2500 is no longer a promo and is now the standard $12 txt addon.

no more expiry date for the forseeable future, i dont think the "special offer "website has been updated yet but if you go to the addon section http://www.telecom.co.nz/mobile/yourmobile/plansandpricing
 it no longer mentions ending in 2011