Apparently, Wall Street is talking about a potential investment by Samsung in RIM. There do not appear to be any legitimate reports on this, nor do their appear to be any sources willing to go on the record.
Remember that Samsung has, in the past, said that it is not interested in buying RIM, nor is it interested in licensing their BlackBerry 10 operating system.
Most of the rumours we hear about RIM have turned out to be untrue over the last decade, but who knows. Maybe this one has some truth to it. For the purposes of intelligent discussion, let's pretend Samsung is interested in investing a supposed $1.5 billion in RIM and using BlackBerry 10 for some of its upcoming phones.