I apologize for creating another thread about this but after doing some reading, I'm still confused about the different licenses.

I plan to build a commercial app using Qt. After reading this thread it looks like I can write an app using the LGPL version of Qt and charge money for it, and I DO NOT need to distribute the source code to my app, as long as:

1) I link the app dynamically
2) I do not make any changes to the Qt source
3) I include a copy of the LGPL license/a link to the Qt source along with my app

So basically, the only benefits I see of having a commercial license are that I can link statically and that I can freely modify the Qt source to my heart's content without having to distribute anything else.

Do I have it right?