The control issue is definitely worse on an iPhone than iPad, with the smaller screen making the over-abundance of buttons even more cramped. It does the best it can, even including the option to rearrange the on-screen buttons, but it's still a bit of a mess. Grand Theft Auto: Vice City already had fairly complicated controls when it first released on PS2, and things are only complicated further in the newly-released mobile port.
Grand Theft Auto: Vice City 10th Anniversary Edition
