Associated Press: Toyota said Friday that nothing had been decided yet on using its California joint venture plant with General Motors to produce its Prius hybrid – a move that would mark the first North American plant for the hit “green” car. Major daily Tokyo Shimbun reported Friday that Toyota Motor Corp. was in talks with General Motors Corp. about producing the Prius, now made in only Japan and China, at a joint venture plant in Fremont, California. The newspaper, which did not …