By way more (I hope) of a plea for help than of self-promotion:
I've posted a beta of Junicode 0.6.5 on my website
www.engl.virginia.edu/OE/junicode/junicode.html
and I'm hoping that some members of this list will want to download and test it.
I had hoped to completely implement the Medieval Unicode Font Initiative recommendation, but decided I should release it half-done. The latest version of OS X seems much pickier about fonts than earlier versions and some bugs in the current version were causing it to be rejected. Since I still can't test on OS X myself, I'm particularly hoping for help from Mac users.
Though MUFI is not complete in this version, it nevertheless includes some substantial revisions. The number of characters in the "Regular" style has gone from something over 1400 to 1756, in large part because the whole of "Latin Extended Additional" (U+1E00 - U+1EF9) has now been implemented. In addition, "hinting" of the Regular and Bold styles has progressed far enough that nearly all documents produced by medievalists will look good on a computer screen.
To download, scroll to the bottom and click on the link for the test version of 0.6.5. Sorry, no documentation yet; but members of this list will know what to do.
Thanks, Peter