Arbor - TOEIC for Android
You can select from two drill modes. Study Mode to help you quickly learn new words or Quiz Mode to see how well you know your vocabulary.
UPDATE - You can now use your recorded audio files as a Flashcard. Click on the Options icon, scroll down and click Flashcard and select Audio (if you don't have a recording for the vocabulary word, the flashcard will display the vocabulary word).
To make an audio recording. Click on the Vocabulary List icon and long-click on a word that you want to make a recording for. From the Vocabulary screen, click on the Microphone icon, and then click on . Make your recording.
This is a Beta version.