cant connect my Arduino with my iPad HELP ME!

Hi,

I know that is it possible to connect the iPad with the Arduino.

@ MSquare: I did not connect the iPad to the Arduino with USB. The Output from my iPad goes to the Arduino TX and RX.
And the USB goes to my MacBook, because the Arduino Need power.
It is possible that the Arduino Board send the Message to m MacBook?
And the LED BLINK sometimes when I disconnect my iPad from the Board!