Gbp/usd - 1.4735 ... The British pound maintained a firm undertone on active cross buying in sterling (eur/gbp tumbled to as low as 0.8280 after y'day's breach of the key daily sup at 0.8400) in part due to the withdrawal of UK's Prudential to purchase AIG's Asian unit AIA. Traders are awaiting the release of U.K. PMI construction at 08:30GMT. Bids are located at 1.4700 n 1.4670 with stops building up below 1.4660 n 1.4630. On the upside, offers are tipped at 1.4750 n 1.4780/90.