We have made this contest a blind one as we respect each designer's unique work. We have used 99designs before and enjoy working with the very many talented artists.
The app serves three purposes. Tracking expenses, mileage and time. We would like the icon to incorporate these three components.
One possible concept is a colleague of the three items representing the three main features of the app.
The current icon has a red book with paper coming out of it. It was not professional done but perhaps another concept would be to build on that with the 3 items represented somehow.
We would like to keep the color red as a dominant color in the icon but still have it be colorful.
The icon should portray a clean, sharp look.
4 sizes are need in .png format :
512 x 512 (used on Apple App Store)
114 x 114 (used on double resolution screens such as the iPhone 4)
72 x 72 (used on the iPad)
57 x 57 (used on the iPhone)