I've read some blogs about this. And it definitely sounds cool, especially if I want to show multiple portfolios and/or a video reel of my work. My main concern is, how would I keep the client that I show this iPad to, or leave with, from playing with it, rather than view the portfolio? As far as I know, I don't thin there is a way to hide, lock, or turn off apps. The person viewing the iPad could access email, address book, etc. How could I only show the portfolio? Thoughts?