The App Store is a great place to find seedy Minecraft apps. It's also the best place to find the official Minecraft companion app. Studio 57Digital LLC's Minecraft Explorer [$.99 / Free] now has the support of Mojang, which makes it a much more stomach-able buy. You can do a lot of awesome stuff with this, by the way, as it functions like an Internet wiki. From the app, you can browse all of the game's item, enchantment, and crafting recipes, favorite items and server listings, view enemy information, and even watch videos.
... And now you can do more. Specifically, with this latest update, you can now share your character skins and design new ones. It's also considerably less buggy, if the long list of fixes is to be believed.
Mojang managing director Carl Manneh drew our all-seeing eye to the product earlier today and it's proving to be a cool tool. We're thinking that it'll be doubly useful for the impending Xbox Live Arcade version of the game, since dual-fisting a laptop and an Xbox 360 controller can be pretty rough. Check it out.