Blackberry has announced that its BBM messaging service will be released as a free iOS app this summer, complete with support for iOS 6 and above. BlackBerry CEO Thorsten Heins said the release of BBM on other platforms is a “statement of confidence,” and noted that the free app is expected to include messaging and groups at launch, with voice, screen share, and channels to be added later. As noted in a press release, BBM for iOS depends…
