I have a Q10 and use the mobile 1 app to install android apps. I like the OS more then android as its very good for multitasking but I like the bigger selection of apps for android as well. so I am very happy.
But Blackberry is dead so why bother implement this.
Its been years now that companies are implementing "bring your own device" polices an either offer Good mobile or Mobile Iron. The company does not have to eat the cost of the device and BES license, further more if the user breaks their device then its on them to go get a new one.
I dose have a Z10 that is working perfectly. Smooth OS, easy to use gestures, perfect business features.
Just bought a Z30 for my wife, she is enthusiast for the beautiful screen, easy learning curve and nice features. She never have used any BB before, just iOS.
I installed a couple of needed Android apps, from 10.2.1 you can do it just downloading the apk.
Good to have a easy to use App Store for Android, anyway I don't feel so much the need of it.