downloaded it last night and im well impressed with it! Look and the slight layout changes need getting used to but it looks smart and has a few nifty features on it. And, it hasnt crashed once yet, which for a MS beta is outstanding!!

Also, there is a beta of messenger plus for it, so you dont have to look at someone elses name (who has plus too) ans just see [c=243] all over the place lol

Was gonna download IE8 too, but reviews say its no different hardly and is a bit buggy, so I'll not bother lol