Churchill Solitaire - The most diabolical version of solitaire ever devised. Played by Sir Winston himself. Available via the AppStore and Google.
Lexica - An open source word-search game.
Microsoft Solitaire Collection - Play Klondike, Spider, Freecell, Pyramid, and TriPeaks! Plus, Daily Challenges!
Crosswords Arena - Word game, multiplayer and computer players
Treys - Like solitaire... but fun!
Words With Friends - Play Words With Friends Free, the #1 mobile word game, with both your Android and...