Quiet debut for the Galaxy Z , the new Samsung smartphones based on operating system, Android 2.3 , which made ​​its appearance on the official website of the Swedish operator 3 . It is, in practice, a version of 'small' of the Galaxy S II . Among the technical features of this device we find a screen 4.2-inchSuper Clear LCD , instead of the Super Plus AMOLED , but always with WVGA resolution and a processor ...