Shoutbox

The installer is rubbish, tries to bundle everything into it (all Windows Live apps, Bing Bar, etc.) so will look forward to getting the wlsetup-custom.exe instead.

It's OK. Not liking the social mode much yet, although maybe once it'll allow me to connect to Facebook and Twitter properly it may be better.

Liking that contacts are listed horizontally as well as vertically when you expand the window.

Tabbed chats is good.

Windows 7 taskbar bug is fixed.

That's all. *downgrades*

EDIT: Downgrading isn't the easiest of things.