Team Destruction, I like that!
Unknown, it has three scripted towns (One has some empty buildings, one doesn't have anyone in the Pokémon Center apart from Joy). There is the introduction to the first main plot, and two side-quests (and a third tiny one). There is one gym leader, and a bunch of trainers on two routes.
If you want to play this so you have some fun hack to play, I recommend just waiting until a later beta, as it mostly just shows some of the new features atm and for people to actually find bugs. (You've all been a great help btw).
There's about an hours worth of gameplay, I think, if you do everything, more if you want to train to beat the gym leader.
Edit: A note on HMs. They won't be as necessary now, so there will be no need to lug around HM slaves. Trees only need to be cut once, rocks only need to be smashed once, and boulders only need to be moved once (with some exceptions).
Also, all bugs mentioned in this thread have now been fixed (apart from the sethealingplace in Pallet, which is now my number 1 priority before I go away on Monday)
And I can't remember if I included the "quick heal" Chanseys in the beta, but if not they are in there now.
EDIT: At last there is now a spawn point before you leave Pallet Town. No more crashing when you die. (I will upload that on Sunday)