So I have been debating all week on whether or not I should get the Inspire and I think that I might get it when it comes out. My concern is, I myself don't have an upgrade. But one of my family members does and they could care less about upgrading any time soon. Is it possible for me to get the Inspire on their number and then when we get it switch it to my number? I was also wondering if this would mess up my grandfathered unlimited data package. Thanks for all of the help.