Wow! Wish I found this sooner.

This app works great. Now I can travel with a second monitor. Always have my iPad with me anyway and now I can put it to even greater use. Easy setup on MacBook Air but had some trouble with a Windows 7 PC. Being a corporate PC and not having admin rights didnt help. After a few emails with Duet they helped me and my admin get it working. Its awesome. Well worth the $9.99.

Rick_Cooper about Duet Display