I loved BB10. It had gesture-based navigation years ahead of its time, the Hub was the best notification system I've ever used, and it could run Android apps alongside BB10-native apps. It helped that I liked the form factor of the devices with physical keyboards, too.

Nowadays can choose between a large, glass rectangle, and an extra-large, glass rectangle in one of two flavours: Apple and Android. It's no coincidence that Android has become more restrictive in terms of control over your own device, as the competition has dwindled and thinned.