I'm now on Blogger Beta. Don't find anything new, have to tinker around more to actually discover what's new here. There seems to the the addition of 'labels' (similar to tags) for each new blog-post.
Update :Looks like there are layouts which replace the templates. Good, no need to play with CSS. The biggest difference seems to be that instead of modifying CSS people just need to maove around bit's of CSS which give the whole blog a "layout".