Too bad the letter values in Scrabble were fixed in 1948. Since then, all kinds of new words have been added to the dictionary, and the point values are all out of whack.
For example, now that "QAT" is allowed, the Q is a veritable goldmine at 10 points.
Other letters are gaining popularity, too.
Soon you'll be able to add "e" to the beginning of any word (email, e-server, e-business -- email is already unhyphenated and it's just a matter of time before the others are, too). Or "i" -- as in iPod, iTunes, i-this, i-that. When we land on the moon, we will probably be building mcars, mhouses, mvehicles, etc.
Anyway, the Scrabble people do keep a list of all the newly added words and the current vocabulary set, even though they don't publish new paper versions of the dictionary.
The iScrabble set comes with an electronic board which wirelessly downloads all the acceptable words from the Official Scrabble Game server, then sets all the letters to values appropriate to their usabilities. LCD displays on each tile display the point value (rounded to the nearest 0.1). All this is done before the game starts.
Don't worry about scoring, the board does that for you. Put your tiles down and press the [Score Me] button, and your score (along with your cumulative score) shows on the board's built in calculator.
Try an invalid word and... Uh-Oh!!! Antipolarized magnets located underneath the board turn on and fling the offending tiles into the air.
Further additions to this product are welcome.