one of the hidden gems of Hotmail with recent updates is IM/Chat from within your inbox http://tinyurl.com/lykoze
Hotmail still needs to make the IM in Hotmail more accessible like have a IM window inside Hotmail and reply via IM.
Quick Add feature – lets users to search and add results from within the compose window.
Fast Addressing – when composing a mail, you can auto-complete the email address (u know it already), What u might want to try is the To… button. click on the button to get a dropdown to add people, categories/groups (aka distribution lists) and favorite people.
Easy Access – access ur Hotmail on the web, Outlook, Windows Live Mail and Mobile