Up.
The solution I used above doesn't seems to work anymore, I'm using currently a SVN 8909 build under OS X 10.8.
My project settings (build targets tab) are currently like this :
Output filename : bin/Debug/test.app/Contents/MacOS/test
Execution working directory : bin/Debug/test.app/Contents/MacOS/
When I click the "Run" button, the log shows this and nothing seems to happen (ie. no app UI appears) :
-------------- Run: Debug in Test (compiler: FSF GCC Compiler)---------------
Checking for existence: /Users/eranon/Dev/Test/bin/Debug/test.app/Contents/MacOS/test
Executing: /Users/eranon/Dev/Test/bin/Debug/test.app/Contents/MacOS/test (in /Users/eranon/Dev/Test/bin/Debug/test.app/Contents/MacOS/)