OK, I admit from the start that I am in love with my iPad2; but it is the availability of Apps for it that make it such a part of my current life. I just encountered a new App that I think is going to be extremely useful in the future. It's an App called Genius Scan from Grizzly Labs that is intended for use on the iPhone, iPad, and iPod Touch.
In short, it uses the back facing camera of the iPad (or iPhone or iPod Touch) to take an image that can be corrected and then mailed—that's in the free version. In the paid (Genius Scan+ version @ $2.99) you can add mailing to Dropbox, Google Docs, and Evernote. Well, you can switch to the front camera too if you want to send a picture of yourself, but it is the use of the rear camera that seems to me to make it so useful.
Take a picture with the camera button which appears once the App is selected, and the resulting picture can then be squared up and enhanced as color or black and white, and saved to a camera roll spot inside the iPad or mailed as a Pdf. Or .jpg.
Since I am always interested in the educational uses that my students might use, I am fascinated by the possibility of the student taking a picture of the whiteboards that are used in classrooms and saving the pictures or sending them as Pdf's or .jpgs by mail so that they could be studied later.
Some fifty years ago I had a math class in which the professor wrote equations with his right hand and erased behind himself with his left hand. The frustration that I felt as I tried to follow and master the equations could have been avoided if I could have taken pictures as he wrote. I can see the usage for this App in student hands today. And more…recipes can be copied; menus, receipts, and sharing class notes—all of these are possible and easily done.
There's much more that can or could be said, but my own recommendation is for you to check out Genius Scan (and Genius Scan+) at Apple's App store and see if a version of the App won't be of use to you. Grizzly Labs has grabbed my attention with this App.