No, I haven't switched over yet.
But for those bloggers who have made the switch to Blogger beta: your feeds no longer work in Bloglines, even when I unsubscribed and resubscribed to them. I can't even bring them up in Bloglines by using the "past week" or "past month" feature--I have to click on over to the actual blog.
This is fine, of course, with one or two blogs. But every day the number of Blogger beta adopters increases.
Anyone have a workaround to this problem? (I'm looking at you, Julie.)