The hook is the best item in AoT. The log challenge is fun, but it's not enough. There shouls be a huge building or a tree to climb on - something so high that reaches the clouds.
Also, an option to custemize hooks (a platinum hook!) would be great.
Another idea about traveling - how about making some low hight clouds all over the map, and you can hook them to move faster (in a spiderman's way)?
And btw, the "Learn how to type" thing is annoying as hell Badspot.