I bought two iPhone 3gs phones long time ago used through Amazon.com They still work great. I found a company that will let me get only phone service instead of the "data" package the regular phone companies sell. I use wi-fi instead of the 3g networking. It works for me, although the apps are getting few and far in-between. There used to be a place on the web that had a listing of all the apps for iPhone's/iPod's but don't have the link anymore. Wish there was a place that had all the old iOS 4-6 apps available.