Our Main Tools
IDE
Xcode
Codewarrior Pro 8.3/9
Eclipse
Netbeans
Code::Blocks
Languages
Java
C et C++.
Objective C
Objective C++
Applescript
C++ Framework, Mac-O frameWork
Toolbox Mac (Carbon technology)
php.
html; dhtml; xhtml
javascript
css (w3c : for example this web site)
Python
PowerShell 1.0 and above
pascal
etc ...
Frameworks
Swing
Cocoa
Carbon and carbon event
Powerplant
X11
motif
SPIP
.NET
etc ....
We are using too
GCD
Simd technologies (Altivec)
Multiprocessing API
Multithreading application
writing Applescript dictionnary for interapplication development
CoreAnimation
OpenGL with anti aliasing
Quartz
etc...