Klaudio Ladavac has released wedge tool 1.0. It is a script that builds upon Maya's existing wedge tool, but makes it faster and more interactive to use in everyday modeling. The tool lets you easily adjust the arc of the wedge and includes some other features. Check out the video below where Klaudio shows you how to install the script and wedge from some different types of surfaces.
The script is free to download on Gumroad. Get the wedge tool here.