Last week Autodesk announced FormIt - a new conceptual design application built from the ground up for the iPad. I had a chance to talk briefly with Tom Vallaro ( @tomvallaro ) after he presented FormIt to a group in an open theater at AU2012 and was really excited to hear some of the things they are working towards with FormIt (some of which I can't share here).
Have an iPad?
Do you like free apps?
Then check out FormIt! If you like Sketchup/Vasari, you will love how FormIt works.
Resources:
iTunes store link
Autodesk FormIt website
Autodesk Blog Revit Clinic
What Revit Wants
The Revit Kid