eu pana una alta incerc sa ma lamuresc unde se incadreaza aceasta apache licence:
http://en.wikipedia.org/wiki/Apache_License
se pare ca permite adoptia in sisteme comerciale, cat si opensource (compatibilitate GPL etc.)
The Apache License (Apache Software License previous to version 2.0) is a free-software license authored by the Apache Software Foundation (ASF). The Apache License (versions 1.0, 1.1, and 2.0) requires preservation of the copyright notice and disclaimer, but it is not a copyleft license — it allows use of the source code for the development of proprietary software as well as free and open source software.