Maybe @BlackJacky and @leonmeitor might find the recent “MaidSafe Dev Update” posts in the Development category of great benefit in getting up to speed on the current release plans.
In essence the we are in the Pre-MVP testing stage so that the devs can find the bugs in the components while they are bringing each component up to the point of MVP
MVP = minimum viable product
It would seem that the terms alpha and beta releases are not being used (anymore) and they are changing to a rolling release system where features are added (& bugs fixed) on each release after the MVP is released.
We are waiting for vaults to be included in the pre-mvp testing. While the network has vaults, they are only operated by MAIDsafe at the moment (50 of them from memory)