I am not a fan of the modern mobile phone but I have to say that is one of the best reasons I have seen to upgrade.
Must be great to have that reminder with you should the urge return.
My Father gave them up a few years ago, everyday he puts the equal cost of 60 cigs away, he actually goes to the shop and gets the exact change.
Each year he orders a new car when the present car is ten months old so he can be sure of collecting the new car on the anniversary of when he gave up smoking.
Any excess funds he has goes in "extras" he usually wouldn't bother with, that's his incentive and it works for him.