Limit precision in GUI text edits
Right now the text boxes in the GUI can display numbers of pretty much any precision. Although in general this is a good thing, it get really annoying if the boxes are displaying numbers with too much precision to fit in the text box. For example, if you rotate the camera with the mouse and then go the the Adjust Camera dialog, all the text boxes under Camaera Positions have a crazy amount of precision that makes it impossible to really read the numbers and hard to edit them. This happens in many other places in the GUI such as in the 2D widgets associated with a 3D widget and numbers generated from data like the auto generated scale factor in the Glyph panel.
Ricardo Reis commented
better user control of displayed precision...