The BlackBerry quarterly earnings call to investors is giving us more than just raw numbers on how the BB10 launch has been going, and we also get a few updates on other aspects of BlackBerry news. Unfortunately, just like those sales figures themselves, there are some more upsets in store here.

The PlayBook’s QNX-based OS made it the forerunner of the BlackBerry 10 devices we know today. When full-on BB10 launched back in January, we heard from the company that it intended to deliver the PlayBook an update to transition it over to BB10 proper – the idea of an all-new BB10 tablet was still up in the air, but the evolution of the old one seemed assured.

Now BlackBerry’s going back on that promise, and it won’t be bringing BB10 to the tablet. The company blames issues with reliability for stymieing its efforts to develop the update.

At least some of its plans are still on the table: BlackBerry assures us that its cross-platform Android and iOS ports of BlackBerry Messenger are still on track for a release later this summer.

Source: MobileBurn, iMore