There is another contender in the note taking category, GhostWriter Notes($3.99) by MajorSpot. At first glance this app appears to be very basic, and in some respects it is. It is simple to use and understand, and it replicates the tried and true notebook formfactor. What is more advanced, though, is the ability to change pen types and colors for handwritten notes, change background paper including using photos, and being able to switch to typed text at any time. As you write with your finger or a pen, and approach the edge of the screen, Ghostwriter automatically advances the paper to accomodate you... very clever and very useful. It dramatically increases the speed of input.
You save a note or set of notes as a notebook and can then erase one page or multiple pages if you no longer want them included. By tapping a dropdown menu, you can also export the full notebook, or any pages within, to Mail, Photos, or as a pdf to iTunes. So, GhostWriter will save your notebooks in the app or can export them out to use on another device.
The appeal of this app is it's simplicity coupled with some well thought out functions. At $3.99 it's not an impulse buy, but it's solid, functional and definitely worth having on my iPad.