For My My Favourite improvement at the Moment was adding the Dash Shelf that Tipsy made for me for my ST1100
The reason i did it was that i was getting annoyed with stuff mounted on my handle bars as i kept knocking them and they just always seemed to be in the way.
the good thing about the shelf is that it means my phone is away from water, it is in a stable position, and it is visible to me, rather than jammed away in a tank bag
At the moment the only thing i have on it is the Mount for my Iphone, but i am Also going to mount my GPS on the other side, once i get the new mount.