Joining WoW and Fallen Earth, Aion is the latest game to have an official presence on the iPhone, iPod Touch, and iPad with Aion Exchange: a mobile window on the in-game marketplace. Now available under the Utility and Reference categories in the iTunes App Store for $1.99, Aion Exchange is a 7.8MB download supports iPhone OS 3.0 or later in English, French and German.

Aion Exchange features, per NCSoft's official announcement:

• My Aion and Item Search: View all the characters on your game account, along with stats, equipment, and more. In addition to giving instant access to character info, Aion Exchange also serves as a comprehensive item compendium containing information about all the equipment available in the game.
• Broker and Price Stats: Leverage the power of market trends and highly-indexed search criteria to ensure you’re on top of the latest Broker trends. See weekly and monthly insights for the top five auctions, most expensive auctions and least expensive auctions, all organized in helpful categories such as weapon, skill, consumable and more.
• Wish List: Similar to what one would find in many online stores, the Wish List allows gamers to add an item to a Wish List to see the lowest price and the number of auctions available for that item, making it easy to know when to snag your favorite item from the Broker.
• Push Notifications: A quick and convenient way to monitor how well your online transactions are going, push notifications will tell you the number of items you have sold without having to log on or open the app.

Ten Ton Hammer got a chance to get our grubby hands on Aion Exchange at NY Comic Con 2010, and while the speed of updates (changes made in-game show up on the phone show up almost instantaneously) and sheer amount of information available at your fingertips (literally) is impressive, several key features remain on the drawing table. The build we saw didn't have database write functionality, meaning you can read all data until your heart is content but can't sell inventory items straight from your phone or chat in real time with other players (as with the Fallen Earth app).

Note also that while Aion Exchange will look good on an iPhone, it hasn't been optimized for iPhone 4's Retina display or the iPad (the resolution will look a little blown out, as with all 2x apps). At the event, NCSoft representatives were careful to note that the company is open to developing these features and higher res graphics if there's interest.

Lack of true interaction aside, Aion Exchange represents NCSoft's first venture into making MMORPGs portable, and could pave the way for increased mobile presence for future games like Guild Wars 2. Find out more information about the app at the iTunes store product page.