iPhone App Icon: Airport Maps

http://www.airportmapsmobile.com

I am an independent software developer. I have a successful iPhone application in the App Store. I designed the current icon myself, but I am now looking to get a more professional icon.

Frequent travelers who own an iPhone or iPod Touch.

I require 1 icon for an iPhone app. The icon appears in the iTunes store and is the first thing a user sees when he finds the app. So, the icon should be visually appealing and express the functionality of the app.

I require:
-57x57 .png
-512x512 .jpg
-Layered RGB file in either .psd or .xcf format

The final product should NOT have rounded corners or glossy effect added, as these are added by Apple automatically. But, it is acceptable for these effects to be added during the contest period, so I may see what the app will look like in iTunes.

Airport Maps app provides the user with a detailed map of major airports as well as a directory of shops, restaurants and lounges. This functionality should be expressed by the icon.

Please visit http://www.airportmapsmobile.com for a full description of the product, including screenshots and the current app icon.