That said, just having a publicly listed price anywhere feels like a big step forward for Qt. In the past there was just a "Contact Sales" form with whispered mentions across forums about real pricing. I think this dissuaded a lot of indie devs from trying out Qt.
I'm not sure why this new site doesn't just have a page called "Pricing" that explains what the monthly pricing means. Answer questions like "Do the tools lock out if the subscription is cancelled or do my rights to published statically linked Qt apps get cancelled?" and "Do I have to pay each month to keep those rights even if there is no active development on an app?".
My guess is that Qt must make a bulk of their revenue on enterprise sales and are reticent to open up a self serve sales process (highlighted by the squeeze page they put up when you click the 30 day trial download button). It is a shame because I think Qt could enable a lot of great apps.