Here you will find a Software Catalog for Coins that runs on Linux & Windows (MacOS X is following)The software is ment to be used on portable devices, so it is optimized for really small notebooks like the ASUS EEE PC, but it runs just as good on bigger resolutions too.It's Multi-Lingual (Dutch, English, French, German, ...), it's Multi-Regions (All regions/countries can be used as a catalog), it's Multi-Purpose (Not only it's a catalog, you can keep track of your own collection).
