Calendar is way faster
Modest is faster (but i still think that it could improve, sometimes gmail inbox is there within a second other times it takes 4)
Browses has basic portrait support (people really shouldnt count on full ui (== desktop) portrait support for Maemo 5! This will be per app)
it dont see MicroB as that quicker currently.. But it has 1 annoying feature now.. when i go to this site or for example my-symbian and then i zoom in to click the small new post picture, it goes to that next page to the new post but in the zoom level i am in, it doesnt zoom out first, thats quite annoying..

Lost 10MB in root.