BlackBerry opened up a limited public beta of their latest BBM for BlackBerry 10 and its a doozy. They have simplified the sending of voice notes so they move in real time and are almost like push to talk. They have also added Glympse real time location tracking which lets you not only send your current location but your real time location until you meet up. I have not tried it myself since I have been running the latest beta (which is incompatible) but the promise is all there.
Now we just need BlackBerry to double down and release it. James over at CrackBerry has put together a great video below showing off the features: