They... can't really do this. Retroactively go back and say the last
six months are not GPL'ed, I mean.<p>The GPLv3, which LGPv3 includes by reference, says<p><pre><code> All rights granted under this License are granted for the term of
copyright on the Program, and are irrevocable provided the stated
conditions are met.
</code></pre>
So they have already given us code with a license that says it's
irrevocable. They can, if they wish, produce new code from now on
under a new license, sure. But they can't go back on their former
promise to make it irrevocable. Putting the LGPLv3 on your code is
such a promise.<p>I hope people just fork Trezor from yesterday and ignore their sneaky
attempt to go back on their word.