You would need to change out the CCFL inverter for an EL inverter, and would need supporting circuitry, if not fully custom in order to convert the control signals from the portable, (should be PWM), to the signals needed to run an EL panel. 

Basically, an inverter changeover would be the only thing needed here. CCFLs run at 800V to 2KV. EL runs around 90 to 120v roughly 400Hz. 

They make these EL panels in various colors including white. but i stuck with light blue, I really wanted aqua. but light blue is good, looks nice

Aqua Green is what is in the emate, I believe.