Jelly Bean 4.2.2 Android Runtime improvements will be arriving beginning in BlackBerry 10.2.1. Android apps on BlackBerry will run a lot smoother and there will be support for more features in those apps:

– Android Native Support: Android apps that use shared libraries written in native-code,
such as C and C++, will now be supported on BlackBerry 10. Support is limited to the
recommended system headers and APIs as documented by Google. Headers and APIs
outside this scope may not function correctly.

-Bluetooth: Android applications using Android Bluetooth APIs will now work on BlackBerry
10. Bluetooth Low Energy for Android is planned to be supported in a future OS release.
As a reminder, Bluetooth LE is supported in the BlackBerry 10 Native/Cascades SDK.

-MapView v1: Applications that use MapView from Google Maps v1 API are now supported using
OpenStreetMaps. Support for MapView v2 API is being planned for a future release.

-Share Framework: Android applications that register with the share framework in Android
will now also appear as share targets on the BlackBerry 10 share menu.

-Spellcheck: Applications that use text input can now leverage support for spell checking
and correction, and the ability to add words to the BlackBerry 10 dictionary