My Canon Powershot camera has integrated WiFi, but I haven't found a tool, which supports it. Gphoto2 project has support for PTP (Picture Transfer Protocol) via LAN and it looks like this is usable for accessing the camera.
Extend gphoto2 to be able to support the camera via WiFI
Looking for hackers with the skills:
This project is part of:
Hack Week 21
This project is one of its kind!