TechSmith has released a free iPad appcalled ScreenChomp that lets you create screencasts with audio narration on the go. You draw freehand on the iPad’s touch screen—the app offers 12 colored pens to choose from—and as you doodle, your voice gets recorded in sync with the drawing. The recorded video can be downloaded as an MPEG-4 file from the screencast.com Web site, which you can then upload to YouTube or any other video sharing Web site.
Click Here to Access Free ScreenChomp App
ShowMeApp is another free whiteboard app for the iPad that offers similar recording functionality, but you cannot download the recorded screencasts.
Click Here to Access Free ShowMeApp
See how Matt Lindsay at Countryside is using this to share video lessons with students and parents.