At last Version 2 is out of alpha and into beta. Alpha in development terms basically means the software has been developed but is likely to have lots of bugs and is not suitable for production (i.e. every day use)
Beta means that the software is stable and is likely to have a few minor, non-earth shattering, usability issues that will be fixes as they arise FYI twitter was in beta for about 6 years!
The plan is to be out of beta by March
Well done to the team!