GNUSTEP Live CD contains a lot of software for GNUstep, a free implementation of the OPENSTEP framework (which is also directly used in Mac OS X as Cocoa). It includes excellent applications for RAD (GORM and ProjectCenter). The CD is available for i486, AMD64, Apple Mac PowerPC, and Sun UltraSPARC computers.
PDFSlide is an application for displaying PDF-based presentations, such as those created by Beamer. It includes a presenter mode with current and next views. The timer view shows the current time and the elapsed presentation time. Apple Remote support is also included, which allows the presentation to be remotely controlled.
AddressBook X LDAP provides a shared addressbook on your local network, without the burden of subscriptions. It is an iSync enabled application which transfers contacts from the AddressBook to a central LDAP directory. It also provides the ability to browse and search the directory. Multiple schema mappings are available and can be customized and extended to address individual needs. Currently, ABxLDAP Person (an extension to InetOrgPerson) is fully supported, but the Mozilla Schema and the basic InetOrgPerson are in development. Support for Active Directory is included as well.
FFView is a fast OpenGL-powered picture viewer a la ACDsee. It is aimed at letting you read manga or other comics onscreen (in either windowed or fullscreen mode). Its features include fast prefetching, smooth panning, voice commands, the ability to browse pictures inside archives (.rar/.cbr, .zip/.cbz) and persistent per-picture options.
Crossbow is an image browser and viewer for Mac OS X similar to ACDSee on Windows. Some key features include a thumbnail image browser with preview and an image viewer with a full-screen slideshow. It supports all Core Image file formats including JPEG, GIF, PNG, TIFF, PDF, and raw. It displays image metadata including EXIF, IPTC, and GPS. It can create zip archives. Planned features include batch resize, rotate, convert, and rename, the file operations rename, copy, move, and delete, and copying images from the camera.