Although Windows Live Wire posted on the scrolling option update today, it looks like Hotmail has snuck in a few more bits along the way.  The most noticeable difference is the inclusion of Web Messenger, now built in to Hotmail:

Now you can open a conversation window with your Messenger contacts from within Hotmail (popping up a new window)

Now it looks like these features are just now being rolled out, as the Messenger sign in from Hotmail has appeared and then disappeared again a few times, and the Messenger contact list is pretty iffy – contact icons seem to appear and disappear at random.  But Web Messenger is working, at least temporarily.

It also looks like the Hotmail Today page is back:

It appears when you sign in to Hotmail, at least until you change the settings to make it go away.

Picturepan2 thinks that Calendar may have been updated too, due to a new icon, and it does seem snappier, but that may just be wishful thinking.

We’ll keep an eye out for more changes, and as always let us know if you spot anything