Blogger creates widget that turns Nokia N900’s flash into a torch. When the widget was clicked on the N900, the LED flash strobed and the D40 was triggered. The N900 can’t control a dSLRs, send and receive MMSes, interface a Sixaxis controller or act as a PS3 controller out of the box. It can’t be used as a remote control on any of the world’s most hackable phones, but it’s open source.”]
Source: https://gizmodo.com/nokia-n900-hack-turns-the-phone-into-a-remote-trigger-f-5482603