Why would I? But I could if I wanted to. There is MonoDevelop, SharpDevelop, and more stuff.
Do you know any besides Qt Creator with which I can develop for the N900 with Qt?
You misunderstand. I don't talk about custom error handling, I'm talking about debugging. (BTW, I agree with you on what you wrote there.) If an exception is thrown during debug, the environment should tell the developer what the problem is.
Sure! Thanks for your professional opinion, sir!