eGeometry app released on windows 8.1 store! You can completely replace the regular geometry box that have sharp & pointy tools.
Also it helps you go green and save paper!
Here is the link on windows app store ( note you need windows 8.1 to download and run this app) -
You can try it for free for a day!
Link - http://goo.gl/oQoAl7
Feedback/comments - Welcome