Gramps, a genealogical computer program that has been designed to run on Linux and Windows, but guides for installation on MAC OS X, BSD and Solaris are available From the information that I have been able to glean, Gramps is primarily designed to work on the Linux systems, but Gramps being an open source program, others have been working on tweeking it to run on MAC OS X, BSD, and Solaris. Installing on a Windows based computer is considered experimental, although people have installed the program on their Windows based computers. GRAMPS usage in Windows is to be considered unstable.
I have not personally installed the program on my computer as I am currently windows based, just recently reformatted my computer, and not very adventerous.
Having stated the cautions of using the GRAMPS program, it appears to provide some great features including: standard pedigree and family group records; relationship views, allows multimedia input such as video, pictures, documents, spread sheets; brower like navigation allowing easy access to file; nine different views for navigating your family tree including people, relationship, family list, pedigree, events, sources, place, media, respository; eight output formats; custom charts; merge features and also a soundex generator. This program is available in multiple languages, The GRAMPS program is constantly evolving as users contribute to changes and improvements. If you are interested in reading more about this program, click The GRAMPS Project to be directed to the home page of the program. Prior to installing this program, make sure you check the compatibility with your system and back up your file. If you would like to read an interview of the original program developer, Don Allingham regarding the development of this program, click Full Circle Magazine to be directed to the magazine PDF File. You will need to scroll down to Issue 2 and click on "Get it while its hot"; then click on issue 2. You will then be able to read the issue in English, Polish, or Italian. Select the language you prefer to read and then go to the appropriate article (page 26 in the English version). Have fun!