Gbp/usd - 1.5845...Cable's retreat fm Asian high at 1.5898 has been attributed to profit taking ahead of the release of GDP data at 08:30GMT, with some rumours circulating that the data cud be worse than market forecasts. Bids remain at 1.5820 n 1.5800 with stops likely to emerge below latter lvl while on the upside, offers are noted at 1.5900/10 n further out at 1.5950 (some orders are option-related)...