Exceptional Physics based game
Most inventive use of the physics engine I have seen so far. Incorporating the concept of building construction into a word puzzle made this game extra special. The only thing I found frustrating about the game was that even though you could make many words on a level, there was some 'Secret' word that was supposed to be made - I didn't always happen upon the special word. At least this gives it some replayability for those who must get 100% on a game.
A user based level creator would make this an extensively played game.