Via Mac Stories:
One standout piece of news in today's announcement is that the HomePod's multi-room audio capabilities won't be available at launch, but instead will come later through a software update. This seemingly supports previous rumors that AirPlay 2's development may have been what led to HomePod's initial delay.
Update: The HomePod page on Apple's website confirms that not only is AirPlay 2's multi-room support delayed until later this year, but so is the previously demoed capability to have two HomePods pair together for offering stereo sound.
Not that I’m buying one (or more), but this is really pathetic, Apple. Why are you releasing half-baked devices and software?