Shuffle Down - Solitary Scrabble using letter to create words.
Evry Word - Like Countdown where the challenge is to create the more words from a series of letters.
Amazon's may have thought that distribution of free games to all Kindle users would have cost them too much money.
They should be expanding the function of the Kindle to try and compete with Apple's iPad.
The Kindle offers over 400,000 books and has had it's price slashed.