Xsilva (Booth No. 314) this week will offer previews and demos of t LightSpeed 3.0, its revamped retail point-of-sale (POS) application. Expected to ship in the spring of 2009, LightSpeed combines a POS functions for front-counter retail with back-office functions such as inventory management, order processing and billing. Version 3.0 will feature a new point-of-sale screen, a host of new features