We used a Modal and some AJAX code to avoid one page reload due to a form submission. In the Notes application, as it stands, a similar technique could be used when creating a new note, editing existing notes, and deleting existing notes. In each case, we would use a Modal, some AJAX code to handle the form submission, and some jQuery code to update the page without causing a reload.
But wait, that's not all. Consider the sort of dynamic real-time user interface wizardry on the popular social networks. Imagine what events and/or AJAX calls are required.
When you click on an image in Twitter, it pops up, you guessed it, a Modal window to show a larger version of the image. The Twitter Compose new Tweet
