is it possible ?
how to configure it ?
Of course you can debug apps using the SDK.
Qt SDK provides an interface to debug QML code and C++ code (using GNU debugger).
What are you going to debug C++ or QML? they are different!
More info:
http://doc.qt.nokia.com/4.7-snapshot...debugging.html
http://www.youtube.com/watch?v=LD360rT7zkA
I hope you are aware of how to Connect MeeGo Harmattan Devices.