I have a vodafone.net.nz email adresss that when I started was associated with a vodem stick. I am finding I am using the vodem stick less and less as using my smart phone which is on account. Iam considering ditching the vodem and tethering through the smart phone. I don't really want to lose the email adress. Can this either be assigned to the smart phone or doesn't it matter as long as I access it regularly?