I'll have to figure out how to live with the fact that I can't include label information for Blogger Beta when I do post-by-email. Hopefully it won't mean that you RSS feedreaders will see duplicate posts days after the fact when I decide to add labels. I like the idea of labels.
Of course, I could just suck it up and not do post-by-email, but then I'd have to sign out of my non-anonymous Blogger/Google account and sign into this one, and, urrg. No comment yet on the fact that I have to enter Gmail's rich-text version to add basic html like italics and links to my posts.