Add the ability to easily convert the units of XY coordinates using Python code. For example, using Calculate Geometry tool, I can get the coordinate of a point in meters, feet, decimal degrees, etc. However, there's no easy way to do this in Python.
The ability to convert units in code is available for areas and lengths. For example, !shape.length@yards! will calculate the length of a feature in yards. What about adding a python function like !shape.extent.XMax@decimaldegrees! that will calculate the X coordinate of a point in decimal degrees?