The first thing you'll notice is the sparseness of the interface and the lack of Microsoft blue. Once you complete a search, google-ad-sense-esque ads appear on the right hand side of your screen. I noticed that they even change as you scroll through your results. At the same time, you'll note that you can use a slider to increase or decrease the amount of detail each result displays (ala most RSS readers). I especially liked the more fluid scroll bar--the further down I pushed the slider, the faster my results zipped by.
All cosmetic niceties aside, what remains to be seen is the validity and usefulness of the results. It'll take a lot to get most of us to abandon our Google lifestyle, but this live.com thing is starting to make some headway.
- Hutch