> I figured out that I can link QT dynamically, and as long as I use LGPL module only, I can keep my source closed. You can link statically LGPL libraries as l

> I figured out that I can link QT dynamically, and as long as I use LGPL module only, I can keep my source closed. You can link statically LGPL libraries as long as you don't modify the code in the library and provide access to object files so that someone could do the linking manually. Not a difficult burden.