I have an upgrade which I intend to use from my POS LG ally. My ally barely runs the operating system at times. If you were upgrading today would you choose a thunderbolt or a d3? where i live I am about 3 miles from the "4g extended coverage area" and about to 10 miles from the regular 4g coverage area. Should I upgrade to a thunderbolt and have the 4g so when it gets to my neighborhood I am ready to roll or get a d3 which should be a vast improvement from the ally?