I think the main changes is just the option menu.
It seems zippier but it could be my imagination, I have a inching feeling i'm late if so correct me.
It looks like I'm now in browser evaluation mode. Between Firefox and Chrome it looks probable that Safari is going to be left behind.
Using Chrome as default browser. I hope they fix its non-compatibility with Garmin software, so I can upload my training data without going to Safari.
I'm using Chrome 12.0.742.122 currently, and overall, use it as my default. I also keep Safari and Firefox up to date and use them if any compatibility issues crop up with Chrome.