I had a BB 9800 and a BB 9900 before, and switched to Android phones for couples of years. From my own experience, BBM is still the most stable and comfortable

I had a BB 9800 and a BB 9900 before, and switched to Android phones for couples of years. From my own experience, BBM is still the most stable and comfortable IM app on mobile phones. I still miss the feeling about using BBM. I guess the backend service part of RIM/Blackberry is still somehow ahead of other manufacturers.