From the developer:
"It utilizes a select-and-drop tile placement interface and a built-in Official Scrabble Player's Dictionary, and saves partially completed games to be continued at any time. Install the optional full-definition dictionary to view the definitions of each word as they are played. Choose to play in either Friendly or Tournament mode. Friendly mode is like a casual family game where you can choose to accept words outside the standard rules. Choose the Tournament mode and you are playing by the classic Scrabble rules. Practice your Scrabble skills when you play against the automated computer opponent. Choose the skill level of your opponent: Beginner, Novice, Intermediate, or Expert. Play against one, two, or three opponents, and the game will hide your tile rack from your opponents. Play against opponents using multiple devices with IR beaming."