"The GPLv3 has clauses in it that opens up a new load of legal questions for Apple that they'd rather avoid." I'm curious why you think it opens up legal quest

"The GPLv3 has clauses in it that opens up a new load of legal questions for Apple that they'd rather avoid." I'm curious why you think it opens up legal questions, etc. They've pretty definitively stated they just don't want to use it. There are no vague or mysterious questions they are waiting to get answers to or anything like that.