I tried BiT for a while in the demo, and it didn't work. I could have had the timing wrong though so I don't know. It's kind of inefficient to test for BiT in the demo because every time you fail you have to restart the skyloft section and go through a 1-3 minute cutscene.
Today or tomorrow I will go through the dungeon section again though (I just fuc*ed around the first time), and if I find a void I will probably try some more there, since the skyloft drop might not be a traditional void.
Oh and a bit obvious, but ISG doesnt work (the traditional way at least, since swinging your sword anywhere near a bomb blows it up).
The last room in the dungeon, with the boss door. It has a void. And it should be considered a legit one aswell. (if the skyloft one works differently, which wouldn't surprise me that much because of the ability to fly and such)
Also, the item in the dungeon is completely useless. You do not have to use it even once, you can easily make it all the way to the boss door without it.
And bombs doesn't not seem to give you any height while exploding. (I've tried running up against wall, and get blown up by a bomb in the process in order to reach a higher area, but I fly down instead of up)
No more shield dropping. Link just put away the bomb.
Note that you also can pick up bombs and put them away before they blow up.
Backflipping/sidehoping is almost as fast as walking. Backwalking on the other hand is very, very slow.
You do not recoil when attacking with your sword.
you can pull out the sail directly after letting go of a vine. There is re-grab delay on vines, even if you pull out the sail between.
From what I can tell, you do not clip at all while grabbing it.
Crawling spots works differently from any other zelda game. You can turn around however you want inside of them, entering them is also very different when it comes to collision. I entered one while things still blocked it (I got pushed inbetween and came inside. It was hard to exit it again due to the things blocking, but it was possible after turning around a bit)
This might spoil one of the items for people (I got it with Ocarina/Wiird).
It IS possible to shoot through solid walls with the clawshots. The game seems to have some detection that disallows you to shoot with the clawshot when you are to close to a surface of some sorts. After running around for a while, I managed to find 1 spot where the clawshot was inside of a eye statue (the room with 3 eyes on the wall), the one to the left to be exact. And I could shoot through it, and hit the eye on the other side. So, if someone finds a workaround which allows you to shoot with the clawshot no matter what you aim against, then it should be possible to shoot through any object in the game. All that is required is a way to allow you to shoot with the clawshot when it is inside of an object.
You do not seem to clip through vines when using clawshot either.