* Yen hovers near 20-month low versus dollar. * Japan's next PM Abe heaps keeps up pressure on BOJ. * Dollar index stays above 2-month low set last Wednesday. * Disarray in US budget talks seen supporting dollar. The yen dipped and neared a 20-month low versus the dollar on Monday after incoming premier Shinzo Abe renewed pressure on the Bank of Japan to adopt a 2 percent inflation target. The yen, which rose on Friday on position-squaring, came back under pressure after Abe said on Japanese television on Sunday that he will try to revise a law guaranteeing the BOJ's independence if his demand for a binding inflation ... (full story)