Crosswords is an iPhone app that has proved well worth the $9.99 price. Puzzles come from several websites (Houston Chronicle, Thinks.com, New York Sun, NY Times Classic, Wall Street Journal, Sydney Morning Herald, The Onion, Village Voice, Sydney Morning Cryptic, Philadelphia Inquirer Sunday, and the Chronicle of Higher Education) and a keyboard and clue interface lets you solve them by tapping on the iPhone screen.

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