PC-maker Acer plans to launch a full line of mobile Internet devices (MIDs) by the end of May in a bid to boost profitability and add to its mobile device offerings, reports PC World. The company will also release version 4.0 of its Shell user interface on the new MIDs, said Gianfranco Lanci, Acer’s CEO and president, at the company’s first-quarter investors’ conference. The devices will all include 3G wireless connectivity and will be able to interact together and share data, he added.