The Galaxy S3 is listed; although, downloading ringtones does not require any device to be selected. You can simply browse the ringtones here.
You can also download our Mobiles24 Android App to browse and download ringtones and wallpapers directly from your phone.
The Casio G'zOne Commando should be included in the next update. As it is based on Android, you can browse and download content without selecting a device. Use the side navigation to browse our free stuff.
You'll find Android apps here: Apps / Games.
You can also download our official Android App HERE.