I've seen a few comments stating that phones from other carriers can be used if the ESN were reprogrammed (using a tool like: http://www.cdma-ware.com/workshop.html). I have a few questions regarding this:
When I buy a ting phone, is it necessary to buy a phone with comparable features? Ie. if I buy the cheapest ting phone and hack a sprint wimax phone to have the same esn, will 4G work?
I read that there have been issues with receiving text messages, is there any detail as to how serious are these issues? Do you users receive any texts or is it sporadic?