iDev2, Lexington, Ky, creator of educational applications for children, introduces its iSign ASL (American Sign Language) tutorial and reference program for the Apple iPhone and iPod Touch. 

Users can choose from more than 800 signs, with each gesture modeled by a fully animated 3-D character, whch
aids in viewing the hand positions from the ideal vantage point. 

The iSign program offers a range of ASL signs in categories such as feelings, colors, clothing, food/drink, school, and sports. Also featured are a selectable list of favorites, search functionality, and the option to sort signs alphabetically or categorically. Quiz mode allows users to test themselves on all of the signs or just those marked as favorites.

The application was originally developed for children, but adults can benefit from it too.

iSign can be purchased on iTunes.