To me, Open Source plainly means source available and open for modification.

Of course this had been made stringent by the OSI and the general open-source communities that generally makes the basic software free for all types of use.


"Free as in Free Speech, not as in free beer"

Personally, I embrace the more open OSS licences like Apache, MIT which truly spur innovation in the commercial applications

I'm not so much for GPL which is very anti-business IMHO.