The LG GT540 OPTIMUS O2 Pay You Go mobile phone comes with an impressive 3.0 inches TFT resistive screen with accelerometer sensor. The mobile works on Android OS, v1.6 and has integration of social networking widgets like Facebook, Twitter, and Bebo. The device has 3.15 MP Camera, which helps in taking pictures and videos of your memorable moments. The internal memory of 130 MB can be expanded to 16 GB via micro SD card and LG GT540 Optimus O2 PAYG mobile offers connectivity to GPRS, EDGE, 3G, Bluetooth and USB interface.