Apples to Oranges 1.2

Apples to Oranges is a simple and intuitive unit converter. Includes scientific notation, easy keyboard navigation, and standard unit conversions for length, mass, time, temperature, area, volume, velocity, acceleration, force, pressure, density, energy, and power.
This application was my introduction to Objective-C, Cococa, and Mac OS X development. Yes, it is simple and does not offer any features that cannot be found in other applications. However it does what it says it should do, and with style (in my humble/biased opinion). Id be greatly appreciative of any feedback, positive or otherwise.
Enhancements:
- Allows input of simple fractions (numerator/denominator)
- Retains user settings, window positions, etc. between launches.
- Restricts user input to legitimate values.
- Support for Mac OS X 10.1 through 10.3 (Panther).