Back when I worked exclusively on my iPad, writing posts for Cult of Mac and everything related to that, I had a hell of a time getting some things done. It seemed like every tiny step needed to be researched before I could get anything done.
In the end, I quit and went back to a split iPad/iMac setup, but not for the reasons you might think.
Every time I walk into a bookstore, I want to buy a book. Or three. Sadly, my budget doesn’t cover that all the time, because I go into bookstores quite a bit. To scratch that itch, I’ve turned to taking a photo of the book covers with my iPhone; that way, I get the satisfaction of doing something about my book lust without having to pull out the wallet each time.
Shoots & Leaves is a new iOS app that aims to solve the same problem, but for all those things you need to be reminded of, not just books you want to buy (though you can use it for that, too, I suppose).