When walking around, you're left to the dreaded virtual D-pad, but you can only ever move in four directions in Final Fantasy
anyway, and it's not like trudging through a town requires precise, twitchy movements. In battle, however, the interface has been completely replaced by a new icon-based layout that feels intuitive and streamlined. You simply touch the icon for your action (fight, magic, item, flee), touch the target, and you're done. The equipment and item menus are also optimized for the iPhone. It's simple to heal your whole team, or scroll through each team member individually to equip new weapons.
At $8.99 each, if you've already got Final Fantasy I
in some form -- especially on a handheld -- there's basically no reason to buy them again just to have them on a phone. But if you don't have them, or want the most convenient versions possible, these work just fine. It's surprising how well early RPGs transition to pick-up-and-play experiences. You can level up a bit whenever you have a free moment, close the app, and then resume the next time you have five minutes.
One word of warning, however: Final Fantasy
crashed on me once. It may have been the software, or it may have been a quirk with my phone. In any case, it happened but once, and you should save frequently anyway
Final Fantasy ($8.99):
Final Fantasy II ($8.99):