toast is a simple package manager for Unix. It automatically locates and downloads source code, determines how to compile it, installs each package in its own directory tree, and makes the resulting binaries available through an encap/GNU stow-like symlink tree. It also supports binary packages. It is often used to install and manage software in a non-root user's home directory.
Cobbler is a network installation and update server. It can be used to automatically set up PXE, install virtual guests, manage answer files, and reinstall existing Linux machines. Advanced features include importing distributions from DVDs and rsync mirrors, kickstart templating, integrated yum mirroring (integrated with the installer to make updates available at install time), creation of netboot ISOs, and built-in DHCP/DNS Management. Tools such as "cobbler triggers", a Python API, and an XMLRPC API allow integration with cobbler with the rest of your datacenter environment or other systems management applications. There is also a Web interface to simplify management of the install server. Cobbler supports RHEL 4+, Fedora, and derivative distributions, and is also able to install other popular distributions.
PAR is a cross-platform packaging and deployment tool, dubbed as a cross between Java's JAR and Perl2EXE/PerlApp. It can turn your Perl programs into ready-to-run executables, build and use PAR files into @INC to avoid version conflicts, turn CPAN module distributions into PAR distributions, or install/uninstall/sign/verify PAR distributions.
Wine-doors is an application designed to make installing Windows software on Linux, Solaris, or other Unix systems easier. It is essentially a package management tool for Windows software on Unix systems. It is developed and styled to fit in with the GNOME desktop, but is fairly portable and a user interface could be developed for KDE. The main goals are to replace winetools, allow flexible application management, provide Queue processing capabilities, provide Application Database integration, avoid global native overrides, automatically add items to the desktop menus, and allow users to manage their Windows applications with profiles and bottles.
Smart is a package manager (like APT or Yum) that works with several backends including RPM, dpkg, and Slackware packages. It uses an algorithm that will not only find a solution, if one is available, but will find the best solution. This is done by quickly weighting every possible solution with a pluggable policy, which redefines the term "best" depending on the operation goal (install, remove, upgrade, etc.).