[mjevans]

It would be nice if they had some form of migration publicly stated. For example something like this:

If your project decides to go commercial the initial license term will include a cost of conversion based on the quantity of code already written.

It would be interesting if they expressed that rate as something like:

A gz -1 compressed tarball of the affected source code will be created, the size (in bytes) multiplied by X is the maximum fee we would charge for retroactive licensing.

I choose the wording 'maximum' there as it still allows them to offer better deals under other circumstances.

[cplease]

I imagine they have sales guys. If you have a meaningful amount of money to spend they will talk to you. If not, don't use their LGPL code in a proprietary product.

Qt is not an end-user, boxed product. This may shock you, but B2B software doesn't always have a public, standard price list.

[mjevans]

Shock, no; sadden and drive me to other ventures yes.

My rule of thumb for pricing is that if someplace /makes you ask/ they aren't going to sell at a price you'd find worthwhile.

[cplease]

And their rule of thumb is that you aren't worth the sale. Bespoke software is not a bulk commodity. They have a free product. If you're going to be a cheapskate, use it.

The notion of charging by byte, as if software were content farming, shows that you are obviously not a professional.