excerpt:"If the inventor of Scrabble were alive today, he would be amazed by the way millions of people are playing his word game now: on tiny screens, wherever they happen to be, against players who can be halfway across the country, or the world.
Scrabble first proved that it did not need the actual click of tiles against a board when it became popular on computers around two decades ago. Now, the game has migrated to smartphones, both through the trademarked game and a similar game called Words With Friends.
In fact, Words With Friends, owned by Zynga, has stolen some of Scrabble's thunder with its digital-only word formation game. Ten million people have downloaded the iPhone app so far, Zynga says, and it went live on Android systems this month.
Solitaire Scrabble is an option on computer and phones, but many players prefer a human opponent. Both mobile Scrabble and Words With Friends allow social interaction through turn-based play and a chat feature. "It feels like I'm talking to my friends through the games I'm playing with them," said Paul Bettner, who developed Words With Friends in 2009 along with his brother David.
Over the phone, games can take days or even weeks to play out, so people often have several games going at once. (Can you cheat? The answer is yes.)