Bloomberg Sony Corp. and Line Corp., Japan’s most popular messaging service, are considering joining forces to develop devices powered by artificial intelligence. The companies are exploring opportunities around digital personal assistant technology to co-create a new communication experience, Sony said in a statement at the Mobile World Congress in Barcelona. Sony unveiled concept earphones powered by Xperia Agent, a …

  Bloomberg Huawei Technologies Co. and LG Electronics Inc. are angling to steal the show at this year’s Mobile World Congress, ushering in new smartphones that each hopes will fill a void created by the absence of a new handset from the usually dominant Samsung Electronics Co. A day before the industry’s biggest conference gets going in Barcelona, LG hosted …

  Bloomberg H&R Block is out to wrest back market share from its online tax-prep rivals with such aggressive measures as free services and interest-free advances on refunds—oh, and plunking a supercomputing Jeopardy star down on the desks of its 70,000 tax preparers. For this tax season, H&R Block has put an additional computer screen on each preparer’s desk, facing …