GBP/USD - 1.6615.. Sterling rebounded initially to 1.6670 in Asian morning but only to fall in tandem with intra-day sharp retreat in euro. Although order book is usually thin in Asia, offers shud be large near 1.6700/15 area as the strg decline fm this week's high of 1.6879 has triggered many stops on the way down. Traders are testing y'day's low of 1.6606 n the stops below there.