nanogui: Why Microwin
Subject:
Re: Why Microwin
From:
"John Waldron" ####@####.####
Date:
21 Feb 2001 14:22:14 -0000
Message-Id: <013401c09c12$75ed6350$6401a8c0@fletchii>
I think what is interesting about QT's stance is that with these multiple
licenses, they can basically charge anyone who makes money from shipping
their product, potentially.
Most product developers wouldn't use entirely GPL'd code because of having
to release their source to their customers (and potentially their
competetors). Therefore, they would take advantage of dynamic modules, LGPL
libs and the like to protect their "IP". What will be interesting to see is
whether or not this strategy works for QT. My personal belief is that those
people who develop products on Linux do so for at least one very important
reason: NO Run-Time cost while still keeping their IP safe.
I am sure that some folks will GPL all their code because they are trying to
move HW, but others will not and I do not believe that those people will
tolerate a run-time royalty and, voila! Microwindows/Nano-X to the rescue!
John
----- Original Message -----
From: "Rob Wehrli" ####@####.####
To: "Nanogui (E-mail)" ####@####.####
Sent: Tuesday, February 20, 2001 10:10 PM
Subject: Re: Why Microwin
> Andreas Pour wrote:
> >
> > John Waldron wrote:
> > >
> > > What are the royalties (if any) associated with QT?
> >
> > Qt Embedded and the Q Palmtop Environment are GPL'd, so as long as you
> > don't send out any proprietary GUI apps there are no royalties.
> >
> > If you plan to use proprietary GUI apps there is a per-developer fee,
> > details at http://www.trolltech.com/products/purchase/pricingemb.html.
>
> What follows is a Trolltech response to my direct request regarding this
> very issue.
>
> .....
>
> Qt/Embedded is licensed both under a commercial license and under GPL
> (the socalled Free Edition). The versions are identical code-wise. The
> only difference is in the licensing. We provide Open Source developers
> with the same high-quality tools as the commercial developers get.
>
> This means that you can develop Qt/Embedded software free of charge if
> the software you develop is also released under the GPL license (thus
> open source). Furthermore, as long as the device you install this
> software on is only delivered with GPL'ed software you can also use
> Qt/Embedded on the device without purchasing runtime licenses.
>
> In case you develop closed source software for your organization or
> another customer, we can offer you commercial development licenses and
> runtime licenses for the end devices. If you develop GPL'ed software for
> a device which also is delivered with closed source software, the device
> needs runtime licenses for Qt/Embedded.
>
> Commercial customers will benefit from professional support and services
> and will not be restricted by the GPL licensing conditions.
>
> .....
>
>
> >
> > Dre
> >
> > >
> > > John
> > >
>
>
> Note that this says that as long as ALL of the software on the device is
> GPLed, then you're OK...
>
> Our MyLinux Pocket Linux Workstation project uses only 100% GPLd
> software and other GPL-like licenses for things such as
> NanoZilla...etc...so we're clear in terms of this response, however, my
> reading of the GPL isn't exactly this way. I probably need to re-read
> the GPL to see if I can gleem anything new regarding this specific
> point, but at least you now have this response from Trolltech...besides,
> we're currently using mostly Microwin/Nanox for now, anyway :)
>
>
> Take Care.
>
> Rob!
>
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