A currency exchange service now offers BlackBerry users a free service to get live currency updates. 4X Currency Corporation offers business customers a dealer platform that they can now use on their mobile devices to get exchange rate information from independent banks in a fast and transparent manner. "The main benefit of our system is that clients can actually watch the changing rate themselves and when they are happy they click the deal instruction and that's the rate they get. This new application will mean that a deal can be made at the best rate, from any location whether it is travelling on a train or even whilst climbing a mountain," said 4X managing director Helen Scott in a statement 4X also has a plan for individuals.