How do I use XPage applications in Notes?
You can run XPage applications in HCL Notes.

Subscribing to Notes applications
Subscriptions allow you to receive real-time updated information from your favorite HCL Notes applications. A subscription is a results document that displays the information you choose to monitor in a specified Notes application. For example, you have a New Mail subscription set up in Headlines that, when enabled, notifies you when you have new mail.

Domino Restyle for Notes applications
The Restyle application function is available for users with Designer access.