They have some amazing engineering, IMHO, but it seems to get piped in random (and often contradictory and/or redundant) directions. They end up with a bunch of excellent but half assed proofs of concept and no major initiatives. They've become so afraid of taking on new challenges and risks, it's kinda sad to see.

Now instead of trying to solve major problems, they just move buttons and shadows around with every Android release and rebrand their hardware with new names and logos every few years.