Pas autant que la clause sur le brevet logiciel, mais ennuyeux quand même : où est la liberté de distribuer des versions modifiées, customisées voire simplement patchées ? La FSF affirme d'autre part que ce type de clause rend la licence incompatible avec la GPL :
The Apache License, Version 1.1.
This is a permissive non-copyleft free software license with a few requirements that render it incompatible with the GNU GPL.
We urge you not to use the Apache licenses for software you write. However, there is no reason to avoid running programs that have been released under this license, such as Apache.
[^] # Re: Oui mais
Posté par Moby-Dik . En réponse à la dépêche La technologie de monde virtuel 3D Scol passe en open-source. Évalué à 2.
The Apache License, Version 1.1.
This is a permissive non-copyleft free software license with a few requirements that render it incompatible with the GNU GPL.
We urge you not to use the Apache licenses for software you write. However, there is no reason to avoid running programs that have been released under this license, such as Apache.
(http://www.gnu.org/philosophy/license-list.html(...))