Remaking for higher screen resolutions isn't a trivial thing to do, however, as some people imply. Especially if it involves adjusting the actual game graphics. These old sprite-based games can't simply be remade for a different resolution like a text-based app can. Unless they're just adding decorative letter boxing or, worse, stretching the graphics. If Square Enix wants to continue releasing new tiles, or wants to remake things like FF VII, it probably isn't cost effective for them to constantly revisit previous releases in an effort to keep up with Apple and iOS (outside bug fixes and keeping things working—like the Chrono Trigger iPhone 5S issue). Conversely, it was very nice to see things like the Final Fantasy Tactics graphics upgrade.