For me this is definitely good news.
Very soon, I will be able to enjoy the unparalleled chat experience of blackberry messenger on my Samsung Galaxy S2 and Apple iOS device.
Anyway, here is the full gist from Blackberry official blog -
If you’re already a fan of BlackBerry Messenger (BBM), we’ve got some exciting news designed to make it easier for you to connect with your entire mobile social network. BlackBerry plans to make BBM, our wildly popular mobile messaging service, available for the first time to iOS® and Android™ users this summer, (subject to approval by Google Play and the Apple App Store, as applicable). This means that, once available, you can welcome your friends and family using these other mobile platforms to connect over BBM and share in the Team BlackBerry love.