UPDATE 2: Report now that Japan Airlines is temporarily grounding all 787s as well.
UPDATE: ANA has told the local Japanese media NHK that they are grounding all 17 787s for inspection. The report of smoke is as of yet unconfirmed but the aicraft is questions is ZA102 (LN 9, JA804A) which was delivered on January 14, 2012 (exactly a year ago) and first flew on January 19, 2011.
Reports are coming out of Japan of another 787 incident this time there was smoke in cabin while the aircraft was in flight and lead to an emergency landing in Takamatsu in Western Japan. The passengers evacuated via deployed emergency slides. There is an unconfirmed report that cockpit indicators showed a battery failure. It is unknown which aircraft it was or when it was delivered.
There is a further unconfirmed report that ANA has ordered all 787 grounded for emergency inspections. I'll update this story as more information becomes known.