Puzzle of the Day downloadable over the air or via connected device
Built in puzzle generator to give you an almost unlimited supply of Sudoko
Puzzle solver to help with Sudoku in newspapers and books
1) Downloading of new puzzles (Puzzles of the day) from http://www.sudokuoftheday.com
2) Puzzle generator to generate almost an infinite numbers of puzzles
3) Puzzle solver to help solve sudoku from other sources (newspaper/bookss)