Sure I guess you could call Aurora "alpha" (but it wasn't named "Alpha" for a reason)… the point is, they're so confident in the stability of the "alpha" they'

Sure I guess you could call Aurora "alpha" (but it wasn't named "Alpha" for a reason)… the point is, they're so confident in the stability of the "alpha" they're offering it as something to be used by, well, all developers. And they should be confident. In the last year or so, Nightly only broke for me once.