I built HEAD from git and noticed that my iPod doesn't load in a reasonable time (I've waited tops one or two minutes). A git bisect identified the following commit 42ff0255bd1d6989dc67c7d924dabda904c95000
Author: phantomjinx <p.g.richardson@phantomjinx.co.uk>
Date:   Tue Feb 22 23:10:41 2011 +0000

    Fix embedded artwork not being loaded
    
    * Embedded artwork is initially detected and displayed. However, on quitting
      and restarting the artwork is no longer displayed.
[…]

Without this patch the iPod is loaded in one or two seconds.