How can I implement Android servo control using WiFi?

Question

I am Electronic Engineering student doing my final year project. My project is controlling two servos motors with an Android tablet (2.3) using WiFi.

What I set out to do is: when I enter the characters in my text box (A-Z), it turns the angle according to the character (180/26=7), each character symbolically representing 7 degrees. I don't know how to interface my PIC microcontroller to my app. I am using the RN-XV WiFi module for establishing communication between my app and the microcontroller.

How can I do this?