content: Once it was already developed there is little to maintain. Unless updates require a significant change and recompile of older apps there isn't much reason to remove it. Even then, it's usually minimal work to update them. My first thought when I read this was perhaps it was breaching some kind of Gov standard in different regions. It could be that managing the frequencies allowed to be "received" within each region was getting too troublesome. Or that they received complaints from a Government standards body and decided to just pull the app rather than fix it.