Living on the bleeding edge is not always easy, and for the longest time now I have had to abandon my hotmail account due to the lack of HTTP mail support on Intel based Mac OS mail.app. The wait is finally over, Hawk Wings just pointed me to an updated, universal version, of the httpmail plug in.
Make sure to exit and re-start Mail after installing the plug-in.
Here are the setting to get Hotmail configured:
Email Address: is your full address (firstname.lastname@example.org)
Incoming Mail server: hotmail.com
Username: your username (myemail)
Password: <your password>
Outgoing mail server is HTTPMail:username (myemail)
Leave SSL unchecked.
You are done!