Ruler 1.35 - This utility is intended primarily for developers using NTK or BookMaker. If you're not a developer, you probably won't find it of much use. If you've used the Newton ToolKit for any amount of time, you'll quickly find that the layout display in the current version has a number of bugs. Ruler is a little utility that displays two crosshairs on the Newton screen. Their position, and the distance between them, is displayed on a floating palette. You can position the crosshairs by dragging them with the pen. That's pretty much all it does, but it does it well.