There is one important fact about Samsung Galaxy S II announced the last week at MWC.
It is going to be the first smartphone featured with a MHL port (Mobile High-Definition video Link "standard" promoted by Nokia, Samsung, Toshiba, Sony, and Silicon Image ).
MHL port features internal circuitry that recognizes USB or MHL impedance and
then automatically switches the phone into USB data / charging or MHL
audio / video / charging modes.