Edit: this may have been premature. I've tried since then and it appears to work fine (except for the multiple file artwork issue)
I just noticed that iTunes doesn't update id3 tags anymore. It appears to store any added information in its database but leaves the file alone. I used to do a lot of tagging with itunes, especially artwork by selecting and pasting. Now you can only drag artwork on a single file unless you show infor for multiple files and drag ot paste artwork on the artwork field. It doesn't get added to the file anyway so you may as well do it with MP3Tag.
On a good note, it now allows you to drag files outside of itunes so I can drag music onto my Muvo icon or an explorer window.
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