- leading "0" (zero) for 1-9 tracks when renaiming (01, 02, 03 etc instead of 1, 2, 3 etc) please. at least as an option
- artwork's pixel size display (eg: 500x500, underneath the preview in "Artwork" pane)
glitches:
- registration window is resized after entering license # and, as it becomes veeeery wide, goes out of my MBA display
- "focus" is lost when Tag goes in background and user has to reposition the cursor where it was (I'm filling a field in Tag, then I bring, eg Safari to the front to check/copy a track's name and, when I bring Tag back to the front...)
- must click into some other field for the last filled one to be retained (and saved)
also... the "comments" field does *not* show, sometimes, all that Tag 0.4 does (using "old Tag" I often found, when buying music online, some comment that "new Tag" doesn't show)
EDIT: oh... and the very annoying "Artwork not showing anymore (sometimes, for some tracks) in Finder's preview after adding RG and hitting save issue" (already reported whilst in beta. even sent you sample files, remember?

(when this happens even completely removing artwork, saving, re-adding and saving again doesn't fix things. moving files to a different HD doesn't fix it either. yes: Artwork is still embedded, just doesn't show anymore in Finder!)
convert from AIFF (the format I always rip to and edit tags) to ALAC and it shows again
thanks for taking a look