[incepted]

From my understanding, Spaces doesn't require any kind of membership anywhere. No accounts.

This could become a big deal if true and possibly rival Twitter for when you suddenly have an interest in something for a few hours/days but want to drop out later.

[dragonwriter]

> Spaces doesn't require any kind of membership anywhere. No accounts.

Since they say its "rolling out...for all Gmail accounts", that certainly makes it sound like its tied to an account (specifically a Gmail account).

[incepted]

Ah, I stand corrected.

[kristianc]

Because of how much of Google's business relies on tracking people's movements across devices, there's almost no chance that this will not be tied to a Google account. Google has no interest in building a Twitter killer per se.