Gbp/usd - 1.6195 ... U.K. Prime Minister Gordon Brown said U.S. President Barack Obama's plan to limit risk taking by banks is in accordance with Britain's approach. Despite cable's choppy movements after early release of weaker-than-expected retail sales data, the British pound tumbled to 1.6132 on active cross unwinding in sterling (eur/gbp rose fm 0.8686 to 0.8759). Offers are tipped at 1.6180, 1.6200 n further out at 1.6230/40 with stop only seen abv 1.6260 n 1.6290.