I call it "androidness"... BB10 also has the real LAG touch screen lag, that WP8 and iOS don't have nearly as much. Like you see in this video slowed down to 120fps:
https://www.youtube.com/watch?v=RVDMOP1pWCQ
In iOS and WP8, things are more responsive, and feel like they are more "under your finger", Android has that lag of movement between your finger and screen movement, and BB10 as it aswell. New powerfull processors have reduced this lag on android a lot, but it's still there.
for example doing pich to zoom in android and BB10 is a lot less responsive than WP8 and iOS