There's still one major bug we're trying to hunt down that's occuring in a closed source library somewhere and it makes the game crash way too much to be playable, so unfortunately we won't be able to release it today like we hoped.
We'll work over the weekend to look at it, I won't give an exact date but hopefully it will be sorted in the next few days. Sorry to everyone who was hoping to play it over the weekend!
We'll get this unstable version out in the "Experimental" branch in the next few days, and plan to have it stable and running nicely in the main branch before christmas!