If you know anything about BlackBerries, you'd know about BlackBerry Messenger.

如果你了解黑莓，你就会知道黑莓 Messenger。

Focus fell, in particular, on ill-defined " criminal gangs" stirring things up, possibly coordinating things via BlackBerry Messenger.

人们的注意力尤其集中在不明确的挑起事端的“犯罪团伙”，他们可能通过黑莓信使应用进行协作。

I would tell you what BlackBerry Messenger's like to use on the KEY2, but I don't know anyone that still uses it.

我会告诉你 KEY2上面的黑莓 Messenger 用起来是怎样的，但我不认识还在用这款手机的人。