The raspberry pi camera is great for experiments but not unrivaled in terms of image quality. But you could also use many DSRL cameras connected to your raspberry pi to take pictures. This is how to use a Canon EOS 40D together with a raspberry pi.
I use the Raspberry Pi so often in kiosk mode running any kind of installation, I already have a ready
Most WiFi networks send their names or SSID so you could easily find them on your device. You could also