1. several ways to lock/unlock

    To lock (only one can take effect): press the green button, double press the green button, press the red button, double press the red button, press the +/- button, double press the +/- button

    To unlock (only one can take effect): double press the XM button, press the red button, double press the red button, press the +/- button, double press the +/- button

2.sound effect

   customized lock/unlock sound effect, the sound will be off when silent mode is selected.

3. autostart when the phone turn on

4. running background

5. few memory cost

6. Multi-language:
    - English (UK)
    - Simplified Chinese (zh-cn)
    - Traditional Chinese (zh-hk)

7. support 5800 & N97

8. Motion-sensing to lock/unlock