Early Access?

From the March 24 Kickstarter update:

Any more info? I know that it's going to take some work and experimentation to port my 5e game into Unlimited, so the earlier I can get started, the better. I would guess that anyone who signed up for early access knows, or should know anyway, not to expect a finished product. It would be nice however to get at least a look at the setup and structure so we can start considering how we're going to add all the stuff we're missing in Legacy (advantage/disadvantage, spell slots, etc).