Corporate customers now make up about 20% of RIM Blackberry customers, down from 71% in 2007 when the Apple iPhone was introduced. This means competing with Apple and Samsung in the consumer phone market. Business users bring more revenue per customer. A looming threat to RIM is the BYOD trend with companies allowing employees to bring their own phones and giving access to corporate data networks. Some companies are giving the new Blackberry 10 a try. Blackberry shares are up 41% in the last 3 months. Yet the challenge of keeping business customers and building a customer base in the consumer market against established competitors in 2013-2014 is a daunting one. RIM's global market share is 4.6%, according to IDC.