After HP wound it down, the main guy behind WebOS, Matias Duarte went on to Android and then implemented Material Design there.
One specific feature I miss is when switching apps, the app cards were live views of the app, rather than screenshots like in Android.
webOS multitasking, and gesture navigation were way ahead of their time.
After HP wound it down, the main guy behind WebOS, Matias Duarte went on to Android and then implemented Material Design there.