Descrição e-SIM simply wanted to simulate. The company (formerly Emultek) designed simulation software for electronic development, interactive training, and Web-based "virtual product" presentations for the embedded systems market. Manufacturers -- including Texas Instruments, Freescale, Tatung, and Sprint Nextel -- have used e-SIM's Man-Machine-Interfaces (MMI) software and its LiveManuals interactive site to design prototypes, test products, and train salespeople. Electronics makers employ e-SIM's RapidPLUS software to transform interactive online instructions into simulated gadgets such as cell phones and camcorders. In early 2007 the company sold its operating assets to SKY MobileMedia.