Bloglines now exports mostly valid OPML. It used to be that it would not include the text attribute, but that is now fixed. 
It still does have one little oddity. Sometimes it exports outline elements with the htmlUrl attribute present but empty. 
Therefore, if you are basing any conversion on the htmlUrl attribute, you should be aware that it may be present but empty and do some kind of string length function to check it's there. 
