Nice little collection of word games, very cool!
The one where you have to type in the letters before they leave the screen is pretty challenging, and it started getting pretty hard the more I advanced in it, it was pretty fun and intense for a typing mini-game. The only down side is having to hear that annoying buzzer whenever I missed a letter or accidentally entered the wrong letter in my keyboard.
The timed word typing challenge was interesting, but I really didn't notice much difference in overall gameplay style between this one and the one before it.
The word typing one is awesome, it made me realize how many things I type "automatically" incorrectly, and it was challenging as heck.
Still need to try the quests.