I am currently using the Samsung Galaxy Note 4 as my main phone. I loved the Note 2, but already hate this version and plan to get the new iPhone when it is released later this year. I have my old iPhone 4 that I am considering switching to for the time being. I am on the AT&T Next program,so selling my current phone and purchasing an iPhone is not an option. I can get by with my Note, I'm just not wanting to, if I don't have to. Does anyone have an iPhone 4 and how do you think it's working for you lately? The one I have is running an older version of iOS, obviously, but I am not sure which. Should I leave it at that, if I do switch back to it, or try upgrading to the latest version of iOS? Am I better off just dealing with my current phone for another five months?