Meh
Too easy. Add harder levels, stages, better graphics, the works. Entertaining though :)
If there was a high score board I'd probably have one of the high scores
You should also judge accuracy, and only score the next letter instead of eliminating all As whenever you type one. If you miss a letter, you should lose points. If it goes off the screen, you don't get the points. It should have a random word generator so you can't anticipate the next word.
~Misfortune