Free usability software for linux

SDE for NetBeans is a UML modeling environment tightly integrated with NetBeans.
It lets you draw all types of UML diagrams (use case diagram, class diagram, sequence diagram, activity diagram, etc.) in NetBeans, reverse source code (Java, C++, XML, XML Schema, CORBA IDL, etc.) to UML models, and generate Java source from UML diagrams.
SDE for NetBeans Community Edition features a Rational Rose importer, an XMI importer, HTML/PDF documentation generators, and plug-in and template support.
Enhancements:
- Branch and tag capability was added to the VP Teamwork Server with Subversion and CVS repository integration.
- This allows different modeling projects to be run in parallel while keeping the release quality project stable in the trunk.
- A user interface designer was introduced for creating screen mock-ups in the early stages of a software development project.
- Usability of the sequence diagram was increased.
- There were also a number of enhancements for various other features.

EDB (Evans Debugger) is a QT4 based binary mode debugger with the goal of having usability on par with OllyDbg.

EDB project uses a plugin architecture, so adding new features can be done with ease. The current release is for Linux, but future releases will target more platforms.

Tasty Menu project is a KMenu replacement aiming to provide the maximum usability, or at least to be a testbed for usability concepts and ideas for a future kmenu replacement.
The left part of the menu is very similar to the Novell idea (http://www.novell.com/products/desktop/preview.html): you have a search box that is always selected when the menu is opened (the search result are displayed in the leftmost listview), followed by a combobox that decides what the following listview: favourite applications (default), most used applications, recently used applications and recent documents.
The right part contains the whole kmenu and takes the aspect from KBFX (http://www.kbfx.org), the middle column contains the top level categorization (plus in the current kmenu arrangment there are also the control center, home folder and find files, but i think there should be present only categories). in the left-most listview there is the content of the category currently selected in the middle column. I think in this way even if it has the same number of items it _appears_ less huge than with a popup menu/submenu structure.
every items have two row, for the name and for the description, in order to make a more it more informative. On each selected item appears an action icon on the right, at the moment they are "add bookmark" on application icons and "remove bookmark" on favourite apps list.
The bottom buttons are the usual switch user, lock session and logout. In a first time I didnt want to put them, I tought that these function should be delegate to another applet like http://kde-apps.org/content/show.php?content=26150 , but it seems that the multiple menus concept its a thing that doesnt work very well in practice, it needs more real-world testing.
The left-most btton contains the user name and icon, and clicking on it it opens the kcm used to edit the users profile. I know it seems silly, but Its only an experiment, probably it will be merged with the switch user button.
Enhancements:
- "Add to desktop" option in menuitems
- Drag and drop from menu to desktop
- Option to set different icons sizes in the three columns
- the button text label should always be of a visible color
- most used/recently used applications list updates in realtime
- clear most used/recently used applications list
- (warning1: deleting one list deletes also the other)
- (warning2: if you use opensuse you must have kickoff reverted to classic kmenu in order to use the recently used/most used lists)
- updated russian and german translations

The GNOME project provides two things: GNOME desktop environment, an intuitive and attractive desktop for end-users, users, and the GNOME development platform, an extensive framework for building applications that integrate into the rest of the desktop.
Main features:
Free
- GNOME is Free Software and part of the GNU project, dedicated to giving users and developers the ultimate level of control over their desktops, their software, and their data. Find out more about the GNU project and Free Software at gnu.org.
Usable
- GNOME understands that usability is about creating software that is easy for everyone to use, not about piling on features. GNOMEs community of professional and volunteer usability experts have created Free Softwares first and only Human Interface Guidelines, and all core GNOME software is adopting these principles. Find out more about GNOME and usability at the GNOME Usability Project.
Accessible
- Free Software is about enabling software freedom for everyone, including users and developers with disabilities. GNOMEs Accessibility framework is the result of several years of effort, and makes GNOME the most accessible desktop for any Unix platform. Find out more at the GNOME Accessibility Project.
International
- GNOME is used, developed and documented in dozens of languages, and we strive to ensure that every piece of GNOME software can be translated into all languages. Find out more at the GNOME Translation Project.
Developer-friendly
- Developers are not tied to a single language with GNOME. You can use C, C++, Python, Perl, Java, even C#, to produce high-quality applications that integrate smoothly into the rest of your Unix or Linux desktop.
Organized
- GNOME strives to be an organized community, with a foundation of several hundred members, usability, accessibility, and QA teams, and an elected board. GNOME releases are defined by the GNOME Release Team and are scheduled to occur every six months.
Supported
- Beyond the worldwide GNOME Community, GNOME is supported by the leading companies in Linux and Unix, including HP, MandrakeSoft, Novell, Red Hat, and Sun. Find out more at foundation.gnome.org.
A community
- Perhaps more than anything else, GNOME is a worldwide community of volunteers who hack, translate, design, QA, and generally have fun together. Find out more at GNOME Developers site.

WikyBlog is a Bliki CMS (blog + wiki) written in PHP/MySQL. WikyBlog has a MediaWiki derived syntax, is AJAX-enhanced, supports UTF-8, and is extendable (e.g. Google maps).
Whats New in 1.4.15 Stable Release:
- The changes in this version are all intended to improve the applications usability.
- The map editing script was updated.
- Dynamic options were added to the changelog.
- The hierarchical structure was made more transparent in addition to other minor feature enhancements.
Whats New in 1.5.0 RC3 Development Release:
- This release updates the database structure and fixes a few issues from the previous packages.
- This will likely be the last release candidate before a final version is released.