EA is starting to experiment more with price flexibility by putting Scrabble [App Store] on sale for $7.99. The app is normally priced at $9.99 but is on sale for "a limited time." EA had similarly dropped Tetris from $9.99 to $7.99 (though on a permanent basis).
The most recent Scrabble update has introduced Wi-Fi networking as well as improved game stability and sound quality.
Scrabble is popular word game in which players form words from individual lettered tiles. Words are formed in horizontal or vertical rows with scoring based on which letters are used.
The iPhone version of Scrabble has been reasonably well reviewed, so the discounted price and Wi-Fi option may provide some additional incentive for readers to make the jump.