DOD has announced the release of GENRIP, a Linux kernel driver for generic 900Mhz and 2.4Ghz serial radios, such as Microhard's MHX. Many robots use serial radio in place of tethers and Linux is becoming one of the most popular robot operating systems, so this is a natural fit for robot builders. GENRIP is based on STRIP from Stanford University. Both programs are Free Software licensed under the GNU GPL.