Psystar can argue Apple abused copyright laws, judge rulesA federal judge last week ruled that Psystar Corp. can continue its countersuit against Apple Inc., giving the Mac clone maker a rare win in its seven-month-old battle with Apple. He also hinted that if Psystar proves its allegations, others may then be free to sell computers with Mac OS X already installed. In an order signed on Friday, U.S. District Court Judge William Alsup gave Psystar the go-ahead to amend its lawsuit against Apple. According to Alsup, Psystar may change that countersuit, which originally accused Apple of breaking antitrust laws, to...