@Rich: I’ve just checked CONSONANT and it is indeed valid on the app’s TWL dictionary.

As for my take on the app, I’d have to give it a solid 9/10. It’s a great app with a few flaws, none of them dealbreakers:

*In single-player, the human ALWAYS goes first. This should be randomized.
*The leftover points from tiles are distributed in the +X/-X fashion. In tournament play, they are distributed in the +2X/0 fashion, thus preserving the same point spread. This should be a selectable option in the game.
*I have only been playing against Hard AI, so I’m not sure if this is already offered, but I’d like to see separate records and other statistics offered against each AI. For that matter, average score for and against would be lovely to have.
*I’d like to be able to see the last few completed games in single-player, not just against other people.
*It is sometimes difficult to maintain Facebook login credentials; I find that I have to log in nearly every day, even having to put in my information with every log-in.
*I’d like to see Clabbers (a Scrabble variant) and Maven (a Scrabble analyzing tool) support in the near future; these could be in-app purchases, and I would gladly pay for them. Of course, I recognize that this may make the file prohibitive in size.
*The Teacher seems to have a bit of trouble offering the highest-scoring play for racks with two blanks; in my last game, I played MUSTacHE for 63, but it offered a 30-point play as the highest-scoring play.

At any rate, it’s still a fabulous app that gets lots of my time!

I did find one problem, the scrabble dictionary on the phone didn’t show “consonant” as a valid word. I’m wondering if the dictionary can be trusted?

For experienced players of the game, those colors are hard-wired, and the completely arbitrary choice to change them makes this a constant irritation to anybody who actually loves the game. I’d give it 3 out of 10, if that.