Ubergizmo | Samsung Galaxy S II Skyrocket HD smartphone sports 720p display, 4G LTE Mobile Burn Today, AT&T and Samsung announced the new Galaxy S II Skyrocket HD smartphone, effectively making the Galaxy S II Skyrocket old-hat. The new HD version of the device has a larger, more pixel-dense display, but retains the slim dimensions and 4G LTE ... Pantech Burst Android Smartphone AT&T Unveils 4G LTE Android Smartphones and Tablet Planned for Early 2012 |