Market participants from corporate treasury, banks, central banks and technology providers gave polarised views and heated debate on such diverse topics as Continuous Linked Settlements (CLS), eFX, straight-through processing (STP) and IAS 39 Financial Instruments: Recognition and Measurement. For an event which has historically focused on the eFX debate, it was interesting to note that one of the issues which may be on the minds of many treasurers is the ongoing debate about single versus multi-bank trading systems.