Photo Server is the free (photos only) version of Video Server. Access your devices camera roll from any computer or device with a web browser on your local network routers WiFi. With proper configuration of your WiFi router, access can be made from the web browser of any computer or device connected to the internet.
Video transfer can be enabled either through the in-app upgrade or by clicking on and viewing an iAd (iAds not available in all countries yet).
The Bluetooth option allows you to transfer photos stored in your camera roll between Apple iMobile devices such as the iPhone, iPod Touch, and iPad without WiFi. Once the BlueTooth connection is established between the devices, choose your picture and the app automatically begins transmitting it via BlueTooth to the other device. Once received on the other device you can view the photograph and save it to your camera roll.