Setting the scene
Andy Rubin's team pitched Java-friendly APIs to OEMs chafing under proprietary rivals.
What happened
Apache-licensed code let Amazon fork Fire OS while Google Mobile Services stayed a carrot.
Why it still matters
Material Design later unified UI chaos. Memorable detail: the Sidekick DNA in early Android team lore rarely makes slide decks but shaped messaging priorities.
Background
Android fragmentation, forked Chinese ROMs, and Play Store malware fights became recurring ecosystem storylines.