With the exception of the EverQuest games, I have not seen any others using isometric tiling. I was curious as to why? Do most gamers like to use the D-Pad rather than stylus clicking? That's the only plausible reason I can think of. With traditional 2D tiling, the D-Pad is perfect for movement. With isometric, the stylus is almost required, because moving with the D-Pad could be a bit quirky.
If you've chosen traditional 2D tiling over isometric tiling, perhaps you could clue me in. Thanks!