At Apple's developer's conference that kicked off this morning in San Francisco, Apple's Craig Federighi, showcased a new version of Apple's Notes app.
The new app is clearly trying to better compete with Evernote and match Microsoft OneNote.
For instance, Apple has added the ability to add a checklist.

Screenshot
It lets you do a drawing with your finger on the iPhone or iPad, so you make sketches in a note. That's playing catch-up to Microsoft, which includes digital pen that supports note taking with its Surface PC.

Apple
It also gives you access to the camera to add photos to your notes.

Apple
And it lets you easily embed attachments, maps links, website links and reformat your notes, very Evernote-ish.

Apple
Now that the iPad is finally getting multitasking, where you can see two windows at once, the new Notes app should be even more useful.