Portland Transit
My very first publicly-available Android application. Portland Transit makes use of Trimet's public APIs to bring information on the United States' best public transit system to the hands of hundreds of people daily. Portland Transit has been in the Top 20 of the paid travel apps of the Android Market since soon after it's release.
Portland Transit Lite
Portland Transit's little brother. Portland Transit Lite has allowed thousands of people to quickly seek out the information that they would have once have had to make a phone call for. Portland Transit Lite has consistently been in the Top 100 of the free travel apps of the Android Market (competing with apps for markets such as New York, Chicago, etc) since soon after it's release.