> The license for prototyping seems to be the same one for release. And Qt isn't offering me a free product, their terms are pay then develop your software. At least in my context.
Their standard Qt for Application Development license gives you a free 30 day evaluation period. Also, I don't think any of this encompasses simply examining the free product without use in product development, e.g., reading the APIs, documentation, and source code. That's a lot of freebies, that you don't necessarily get with other commercial products.
> In any event the only issue is the weird quirk of the Qt commercial license preventing you from switching to commercial from LGPL. Which I and apparently a few other people in the thread really didn't get at first.
There's no weird quirk. As they state, "If you have already started the development with an open-source version of Qt, please contact The Qt Company to resolve the issue." If you have money, they will take your money. But if you want to develop a commercial product and use Qt up front then you have to budget for it. If you can't afford it then use something else. No one is holding a gun to your head forcing you to develop a proprietary product with Qt.
