Sansa Fuze+

So with this “gapless playback” support - what are the conditions?

i.e. Will it work with my LAME encoded MP3’s which playback gapless on my Rockbox enabled iRiver H140 and Winamp etc?

(I don’t have a Clip+, but I’m sure I’ve seen people say that gapless support on the clip+ does NOT include MP3s)