What are your thoughts on my first iPhone app - Outliner7?

[theambiapps]

My first iPhone app - Outliner7 - simple and distraction free outline editor. Available for free for sometime. Would anyone be kind enough to review it?

iTunes: http://itunes.apple.com/us/app/outliner7/id520827199?ls=1&mt=8

Web: http://www.ambiapps.com/outliner7.html