LG GT540 GSM Unlocked Cell Phone. LG Optimus GT540 is LG's second Android phone. It attracts the attention with its design with very round edges and metal like trim around the corners. The controls are a combination of two touch sensitive buttons (back and menu), while the home, call and end are regular ones. Specs-wise, there is not a lot to talk about 3 mega-pixel camera, video player with DivX support and microSDHC card slot.