Hey this is a great app. The photos are good and there is a great variety of words. You can choose the speed of fingerspelling and length of the words. Its fun too, like a game. Ive gotten a lot better at recognizing fingerspelled words after practicing with this app. Also you should get it because Bill Vicars is really cool. :)
Dude mom about ASL: Fingerspelling (Lifeprint.com)