abcNotes is one of those apps I bought in the early days of my iPad (very well could have been free then). I stopped using it because I didn't have any use for it, and it didn't do a whole lot. The app is now new and improved. Looks like iOS 5 made app developers step up their game.
abcNotes is a sticky note application that has added a checklist and iCloud synchronization. If you already have this app, give it a second look.
Here is how I am using it, check it out.