The Device Selector window lists all available devices grouped by platform. If this window is not visible, select Windows > Device Selector.
If no Java ME platform is registered in the toolbar, the Device Selector displays a node labeled No Device Found. If you see this message at startup, it typically means device discovery is incomplete and you just need to wait a few seconds.
Each sub node represents an emulator skin for a device. Two instances are provided for some CLDC devices, for example, DefaultCldcPhone1 and DefaultCldcPhone2. These devices have the same capabilities but unique phone numbers, making it easy for you to test communication between two devices.