BlackBerry’s recently announced iOS app for its BBM messaging service is expected to launch this summer, but it apparently won’t be coming to iPad right away. According to a report, Vivek Bhardwaj, head of software portfolio at BlackBerry, said BBM will be coming to “iOS phones running iOS 6 and higher.” Bhardwaj said smartphone is the company’s “real focus” for BBM. “When you start looking at tablets,…