Sms. I have a sony ericsson cybershot which everytime a new message comes through the screen

Question

I have a sony ericsson cybershot which everytime a new message comes through the screen lights up and then the name of the person with some bits of the message is visible to everybody around you!!!This i have noticed does not happen on Nokia mobles! Do you know any other model of sony ericsson which has the nokia system..where just' 1 new message received ' shows on the screen??I am used to only sony ericsson mobiles.Tks