Hi,
I've just uploaded the latest version 0.2-5 of desktop-photoapplet to (NOW IN) extras-testing repository. So, plz test it out and specially to check the application when the device display is ON/OFF coz I couldn't do that myself due to the lack of device. My n810 was responding to the display state of the device but not sure about n900 and I haven't tried the whole application in n810 either just the code for the display state. I've uploaded the updated functionalities and screenshots in the #1 post.

NOTE: If you have already installed the previous version then plz before installing it. cheers!!