All I can say is ‘thank you for listening IE team, thank you very much’.
Support the alpha channel in PNG images. We’ve actually had this on our radar for a long time, and have had it supported in the code for a while now. We have certainly heard the clear feedback from the web design community that per-pixel alpha is a really important feature.
Address CSS consistency problems. Our first and most important goal with our Cascading Style Sheet support is to remove the major inconsistencies so that web developers have a consistent set of functionality on which they can rely. For example, we have already checked in the fixes to the peekaboo and guillotine bugs documented at positioniseverything.net so use of floated elements become more consistent.
Left Brain Right Brain 
Wow, great to see that MS is listening to the people who matter for once, though it isn’t likely to get me using the browser, its a positive step for sure.