Evernote for iPad
Evernote for iPad has a brilliantly intuitive and effortlessly beautiful interface. The use of thumbnail pictures throughout brings colour and life to the App and the attention to detail is great!
I particularly like the way your notes are stacked - keeping you in touch with the way things used to be remembered...
About Evernote for iPad
A selection of other designs you might like to explore, based on Evernote for iPad: