Elephant Super Memory Challenge, v2.0

The app "Elephant Super Memory challenge: Recall This!" is being updated. The new version will be called 2.0.
It has one more challenge: to remember the position of X-es in a grid. There is no keyboard involved, because there's just one character involved.
It works as follows:
-You press the Start Game button.
-The app puts randomly distributed X-es into the grid.
-The app hides the X-es after a while.
-You simply touch the grid to show where you think the X-es were.
-You press the "Done"-button.
-The app shows you what you did right or wrong.

The new version will be in the App Store within about 10 days. I'll keep you posted.