The first app I ever downloaded was Evernote. It was a coincidence, since I had no idea what I wanted to try out. But it was lucky! Evernote is an app for sharing notes with yourself. When making a note on your desktop computer, it gets synced with your phone or tablet end vice versa. It is versatile and has many useful functions. Integration with Twitter and a Chrome extension being some of them.
You can also take pictures with your phone and add them to one of your notebooks – Evernote is even so clever it can scan your pictures for words and use these as tags, så you can search for them. Even though I will not have any touch gadgets for a while, I will keep using it on my desktop.
The app looks more or less the same on tablets and phones. It is easier to use on a tablet, since the icons are bigger – but that is the main difference. It looks quite different on the desktop computer. Here you have some more functionality, for instance enabling you to sort your notes in an easier way than if you used a touch gadget. I like the way Evernote has been considered for all platforms and developed thusly, instead of trying to use the same implementation on all platforms!
Apparently Evernote is also one of Forbes’ 8 recommended apps for busy women: http://blogs.forbes.com/prettyyoungprofessional/2011/04/07/top-8-iphone-apps-for-busy-women/