SpeedLight 3D View displays avatars as animated stick figures:
It works this way because of several reasons:
Second Life avatars can be unpredictably huge (up to millions faces),
Huge avatar consume mobile traffic
Huge avatar rendering drain the battery power on mobile devices
You can load any avatar in 3D by demand by right-clicking (long-tapping) and choosing "Load 3D avatar" menu:
3D avatars are currently static (not animated) and still in development.