Well, to answer part of my own previous posting, 0.2.5 seems to work fine with iTunes 6.0.5 now that I’ve had a chance to download and install it (from the nightlies page: http://nightlies.mt-daapd.org/).
I also find myself in the position that I can’t duplicate the “not working” behavior of 0.2.4. Neither can anyone else, either, apparently, as nobody has complained.
To be fair, I didn’t actually try 0.2.4 with 6.0.5. I downloaded and built 0.2.4 but as I was about to install it I ran across comments about 6.0.5 and then went straight to 0.2.5 (once I found it on the nightlies page), which worked fine.
WRT to upgrading to nightlies, the dependencies you need are libid3tag (still), and sqlite 2.x or 3.x (2.x seems more stable).
Like mlomker (above), I ran into problems trying to load sqlite (3, iirc), but that was quite a while back. I may investigate debian-izing my Linkstation (and mt-daapd) as I’d love to ultimately be able to update mt-daapd by just doing an “apt-get upgrade”…