The Journey Down is a point and click adventure game that looks to have taken visual inspiration from Grim Fandango. The game is available now for PC, Mac, and Linux... but the reason we're mentioning it here is that developers SkyGoblin are porting it for iOS devices sometime soon. Have a look at the trailer here:
As a fan of adventure games, this looks like a lot of fun. For those of you who don't want to wait, the game can be purchased from their website.