HAC4Linux is an application for bicycle computers
of different manufacturers. The supported bicycle
computers are CICLOSport HAC4, CM414-AM, and
CM436M. Support for Polar XTrainer and Polar
SportTester/Vantage XL are in an alpha stage.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.