No. GPL is not "open" source. It's "Free Software" (the Free meaning Freedom, not no cost, or as they say.. free as in speech, not free as in beer). The difference is one of political philosopy. Free software developers believe in requiring that all code be (in effect) non-commercial, though they'll argue otherwise with unrealistic scenarios. Open Source adherants believe in contributing their code to the betterment of all. The BSD license is an Open Source license. GPL is a Free Software License.
-- Where are we going? And why am I in this handbasket?