While I doubt this will be a popular idea due to most people being in good service areas, for people like me in remote and poorly serviced locations, it would be a way to get a little more use out of our plans. I can't use voice cell service in my house, and if I'm outside it's spotty at best. Why do I have a cellphone then? For safety traveling our highway. During winter, our highway is closed almost every other major snowstorm for 6-8 hours. Traveling at -20C or below, I like to know I have a cell on hand, even if I can only get a text message out to a friend. Most months I use none of my 50 minutes. It's just a fact of our location. It would be great when I'm out of town to be able to access some of the web services I use on data with some of my unused minutes. I'm far more likely to use data than voice, even in cell service range. It would be nice to be able to convert unused minutes at a rate of 2MB per unused minute to the following month, up to a total of 2x our anytime minute maximum according to our plan. So for my 50 minute plan, I could save up to 100MB of data total at any one time. Data usage would come off that, and excess be paid for using the data saver plan. The next month, any unused voice minutes would go towards topping up to my 100MB total limit. Even if you charged $5/month to allow us to save 2x our rate plan minutes worth of data in such a manner, it would make my plan more useful. Or charge to use minutes for data in a given month with no banking. Would love to see something like this in effect.