XLocate greatly extends the usability of standard Linux slocate or GNU locate utilities. It allows for instant search of fixed strings or regexps in file names from local and remote, mounted or unmounted filesystems, as well as any number of memory sticks, removable drives, CD-ROMs, and data DVDs. It compiles natively on Qt4 and Qt3, without Qt3 compatibility required for the former.
xmdb is a collection of programs that calculate and display Mandelbrot sets using X11. This package includes sources for mcalc, xmdisp, and mxwd. mcalc does the calculations and writes a datafile. xmdisp reads the datafile and produces an X11 display that contains a fractal picture. mxwd reads the datafile and writes an X Window dump (xwd) format file which can be read by xwud and xpr.
XmlBlaster is XML based MOM (Message oriented Middleware) with a lot of features. It is a publish/subscribe and point-to-point MOM server which exchanges XML-encoded messages. Communication with the server is based on CORBA (using JacORB), RMI, XML-RPC, native socket, or a persistent HTTP plugin. Subscribers can use XPath expressions to filter the messages they wish to receive and add their own MIME-based filter plugins. C/C++, Java, Perl, Python, VisualBasic.net, C#, and PHP client demos are included in the xmlBlaster test suite, and Tcl and Python demo clients are scheduled. XmlBlaster also provides a browser callback framework, allowing browsers (Netscape, Mozilla, MSIE) to receive instant callbacks over a persistent http connection. A security plugin framework allows authentication/authorization in many ways. Currently there are LDAP- and passwd-based plugins available.
xmlstack is an ELF binary decoding library that translates all potential executable callstacks for a given binary into XML. This allows for detailed external processing and easier optimization of applications by analyzing the flow of an application. Currently, it only supports x86 ELF binaries.
If a USB mouse is declared the core pointer, X won't come up without it, AllowMouseOpenFail notwithstanding. If it has SendCoreEvents set, xmodmap pointer = ... will no longer remap its buttons, as it only works on the primary pointer. xmootmap is a bare bones command line tool that lets you remap buttons on secondary pointers, and is aimed at laptop users with funky mice. Intended use is mostly from ~/.xinitrc.