It's called envy. They don't have anything, so they don't want you to have it either (and it isn't justified by your having stopped them from getting it--they were the ones trying to stop you from getting it). Pure envy.
Additionally, they are afraid of apostate web sites. When you get a "smart phone", those things can store data. You transport data from an apostate web site onto one of those things, and it can store it. Later (such as at the Kingdumb Hell), it is possible to retrieve such data. They are worried that you might be reading apostate material--especially since many of those things can actually download such web sites directly on the device instead of needing a computer hookup (more so lately). Back when cell phones simply took pictures, doing that was impossible.