Acer announced plans to enter the smartphone market at the GSMA Mobile World Congress 2009. Several Acer executives, including CEO and President Gianfranco Lanci, announced the company’s plans to bring more than 10 smartphones to the market this year. Acer showed off eight of those devices at its press conference in Barcelona. Collectively known as the Acer Tempo series of smartphones, all of the handsets run Windows Mobile. Acer said that there are plans for other operating systems, but didn’t specify which