the screenshots on xda are of the honeycream theme. unless you specifically apply this theme,there is not much to see with a screenshot. its pretty much the same basic vanilla android as GSB
i dont know why its different,but tasty bread seems quite a bit smoother when scrolling thru the homescreens and opening/closing apps,and alot snapier when opening and closing the app drawer. otherwise,its honestly not alot different.
my only complaint thus far with 3.0 is that most of my apps dint come back automatically