Keiji Kanazawa just announced an update to the Windows Live Messenger Web Toolkit. He states:

With this update,

• The Messenger Web Toolkit UI Controls should work better in IE6
• We have changed the sign in text from “IM Here” to “Sign In” to make it more clear what it does
• Performance should be better when going from page to page

We are also working on more exciting updates for the future.

Last days, I talked with somebody from the Web Toolkit team; you can look forward to read the interview here soon. Stay tuned!