Really i´ve probed many of the Corel Draw equivalent sofware, but really i can´t work similar to. I would great to develop something more similar about files compatibility and GUI.
See 
http://newsforge.com/article.pl?sid=03/07/09/1934259 for an example of a task-oriented table.
|^Windows Equivalent|^Linux Software|^Notes
|vvvvv Internet Explorer|Mozilla|MozillaNotes and 1?
| MozillaFirefox | also available for Windows
| Opera | also available for Windows
| Konqueror | 3?
| links | 4?
| Lynx | 4?
|vvvvvv Microsoft OutlookExpress|MozillaMail|1?
| Evolution |2?
| Pine | 4?
| Mutt | 4?
| KMail | 3?
| Sylpheed | 2?
| MozillaThunderbird |
|vvv mIRC | XChat | 2?
| epic | 4?
| BitchX | 4?
| irssi | 4?
|vvvv Winamp | xmms |
| zinf | Zinf is not Freeamp
| beep |
| rhythmbox |
| MPlayer |
|vvvvvv Microsoft Word | AbiWord | 2?
| OpenOffice Writer |
| LyX | 6?
| Kate | 3?
| vim / gvim | 5?
| GNU / X emacs | 5?
| LaTeX | 6?
|vv Microsoft Powerpoint | OpenOffice Impress |
| MagicPoint |
| Prosper (LaTeX) | 6?
|v MicrosoftExcel | Gnumeric | 2? Gnumeric doesn't support VBA, you can use Python/Perl/TCL etc for scripting if required. It does however support all the spreadsheet functions that MicrosoftExcel has, as well as a hundred or so more.
|OpenOffice calc | OpenOffice has a VBA style reimplementation
|vvv Microsoft SQL Server | PostgreSQL | 1?
| MySQL | 1?
| FireBird | 1?
| SQLite | 1?
| Adobe Photoshop | TheGIMP | 2?
| Macromedia Freehand | Sodipodi |
| Sound editor | Audacity | 2?
| VisualBasic
VisualC++
C# | GnuEnterprise?
Python
Perl
Java
C/C++
Scheme
TCL/Tk | See 
Category:ProgrammingLanguages
|vvvvvvv VisualStudio | GCC | gcc(1) is a compiler, not an IDE
| emacs | Emacs is an IDE not a compiler
| IDLE, Eric | IDLE and Eric are Python IDEs
| Make | make(1) provides a project/building framework for applications
| KDevelop | KDE-oriented IDE
| Anjuta | GNOME-oriented IDE
| NetBeans? | Java based IDE
| Eclipse |
|vv MicroSoftDeveloperNetwork | ManPages? | For documentation on commands, library calls and system calls
| Google | To find web pages which talk about specific problems
| UseNet | To ask specific questions
|v Dos Box | xterm(1) |
| konsole |
|vv Command.com / CMD.exe | bash(1)
| tcsh(1) | CshProgrammingConsideredHarmful
| BusyBox
|vv MSN | Gaim | 2?
| Gabber
| kopete| 3?
| IIS | Apache | 1?
| Firewalling / NAT | iptables(8) |
| Microsoft Access / FileMaker? Pro or similar | OpenOffice base | OpenOffice 2.0 has database front end.
| Family Tree Maker / Legacy| Gramps| Genealogy software
|v Frontpage / Dreamweaver | Quanta | 3?
| Screem| 2?
|vvvv Microsoft Visio / Corel Draw | dia(1) |
| xfig |
| Inkscape |
| kivio |
| sodipodi |
1? The Linux software is generally considered much more secure. 2? This is a GNOME/GTK application 3? This is a KDE/Qt application 4? This is a command line or terminal program 5? They may not be WYSIWYG editors but they are still perfectly fine for most things 6? LaTeX is a typesetting language, not an editor. It produces the desired result (in many cases better than the MS equivalent), but in most cases you need to use a text editor (like gvim) to 'write' the document. You can use LyX to write documents in a near WYSIWYG style -- Perry Lorier
