Notes is the free built-in notepad app. With the release of Pages, there are few people who use it anymore. For those who do still use it, there is an easy but not well known way to change the font of your notes.
Go to Settings -> Notes. There should be only one category with three fonts. This definitely is nowhere close to the number of fonts Word or even Pages has, but it can freshen up the Notes app for any one.
Have fun with your iPad!