The Samsung Galaxy Ace S5830 is a nice mid-range Android phone running 2.2 Froyo with Touchwiz 3.0 on top. Sometimes it is useful to know what your device’s MAC address is and to locate it on the phone isn’t always that intuitive.
First, select the Settings application from the main menu and once loaded, select the Wireless and networks menu option. Once loaded, enter the Wi-Fi settings menu option. The trick now is to hit the menu button, which will bring up a new contextual menu with one of the options being Advanced. Click on Advanced and the new screen will finally read return your MAC address to you.
And now you know.