It would be nice if you could move the viewing area on trackpads with two fingers.
If you're on an Apple laptop you can move around webpages and most objects by pressing two fingers against the trackpad and sliding them around, when you release your fingers the object typically snaps back to the original position. I would like to do the same in Graal so that it can be used to peek at lower portions of the screen.
If Stefan would implement horizontal scrolling, then this could be scripted in, similar to how it's done on the iPhone servers. Could even be done in login scripts.