The Sierra Infinity Mobile software version 1 for handheld computers fills a need for in-the-field ballistics needed by long-range and tactical shooters. Infinity Mobile provides a selected subset (and the accuracy) of the functions in Sierra’s renowned Infinity 6 Ballistics Software. Key features in Infinity Mobile are: the ability to quickly create a custom gun database for use during critical field deployments; the ability to handle any bullet for which one or more ballistic coefficients are defined; a single screen that provides the ability to enter (and quickly modify) up to 5 profiled winds (in 3 dimensions) along the trajectory to the target; and a single screen that permits the shooter to quickly modify the winds, vertical angle and range to the target to obtain a near instantaneous shooting solution for holdover and windage correction. Infinity Mobile operates on platforms using the Windows Mobile Operating system, Versions 5.0 - 6.5. Suggested retail is $39.95.