sysinfo is a graphical tool that is able to display some hardware and software information about the computer it is run on.

G. JACK Transport is a standalone application that provides access to the Jack Audio Connection Kit's, JACK transport mechanism via a dynamic graphical slider.

The virt-manager application is a desktop user interface for managing virtual machines through libvirt. It primarily targets KVM VMs, but also manages Xen and LXC (Linux containers). It presents a summary view of running domains, their live performance & resource utilization statistics. Wizards enable the creation of new domains, and configuration & adjustment of a domain's resource allocation & virtual hardware. An embedded VNC and SPICE client viewer presents a full graphical console to the guest domain.

Htop is an ncursed-based process viewer similar to top, but it allows one to scroll the list vertically and horizontally to see all processes and their full command lines.

HexChat is a graphical IRC client with a GTK+ GUI. Features include Python, Perl and Lua scripting support, a plugin API, multiple server/channel windows, spell checking, multiple authentication methods including SASL, and customizable notifications. For more information on IRC, see http://irchelp.org/.

Adds an easy to use graphical icon on the GNOME toolbar to make screencasts with the video and audio capture application recordMyDesktop