Appleinsider publishes a screenshot from the latest development builds of Mac OS X Leopard which reveal that Notes will likely sync with Leopard's Notes functionality:
![notes](https://images.macrumors.com/t/5yZbL5FxoYsGLTmlJYcnZvTa-ns=/400x0/article/2007/10/04/notes.png?lossy)
The updated Mail client under Mac OS X Leopard offers Notes functionality that closely resembles the iPhone's notes application:
![mail gallery notes20070611 500](https://images.macrumors.com/t/buO3twxbLxT7dPz4GHSkYBed8z8=/400x0/article/2007/10/04/mail_gallery_notes20070611_500.jpg?lossy)