https://play.google.com/store/apps/details?id=com.blackberry.hub&hl=en
Fortunately BB now makes Hub as a 3rd party app, and I'm now happily running it on my Samsung. The paid (ad-free, with full features) version is just 1$ a month tacked on to my mobile bill and it's going to be well worth it.
http://crackberry.com/blackberry-keyone
BTW BlackBerry is still making BlackBerry phones, but the new ones will be running on Android. I'm really looking forward to the new KeyOne aka Mercury, and hoping to buy one as soon as I'm able to do the discretionary spending thing again.