thanks for a great app! I use it along gmote to intuitively place my windows (gmote for minimizing, maximizing, close, etc..)
My preferred way of placing windows is with the mid button, which I also heavily use to open new links in Firefox.
It would be great if one could increase the midbutton trigger time so as to avoid using Gridmove unadvertedly
(if one is quick it does not interfere, by it would be great to give some extra leeway)