BlackBerry Plans to Move BBM Chat to Android & iOS

I'm not a tech person but I know the difference between an Android phone and a blackberry. Lol. Blackberry recently announced that they want to make the most peculiar feature on Blackberry (the BBM instant messenger) available for the first time to those who use iOS® and Android™ .(subject to approval by Google Play and the Apple App Store).

Now we know the competition is huge as everyday brands are coming out with the latest mind-blowing technology you can find in phones.
This means, those who have Samsung or Iphones can now use the BB messenger..

The question on everyone's lips is...would this bring Blackberry down or elevate them? Or is the addiction to Blackberry so strong that original BB users wont migrate....

In simple terms..would you still buy a blackberry if you know you can still have the BB chat on Android or your Iphone?..I know my answer but want to hear yours first..