I use it because of its SIP client even though the call quality is not as good as others. As a photo frame also. DialCentral is still working fine and its LED notification is reliable. Until recently I was using it to control an old nokia phone through gnokii to send and receive texts.I am thinking on carefully soldering a ribbon to the leads in the battery compartment so it can be used to control other devices through serial but then I am not sure how to get a connector out in a way that is not too cumbersome. I am still hoping that the firmware for the different components that are proprietary will be released one of these days to the community so the life of the device can be extended indefinitely.