And if anything, I think menu items are begging for a rotation aspect based on initial XY and secondary XY; that way you could have a rotated spline-menu, which would cover pretty much anything you could want to do (though text would be rotated as well, so I guess vertical wouldn't help)
However I am not too giddy on that issue, but I figure as long as I'm still working on this over here, might as well get a solidified spec down.