I believe you will find that Letterhead Fonts has discontinued that project.
The fonts are probably still OT fonts, but there were too many problems
with the new method. Chuck is still working on an anti-piracy system for
creating font files. My Hero!
Really, man I would freaking love him if he gave me the real .otf files of the $400+ I bought in fonts before they posted their new anti-piracy method in plain site on their website. I can't even tell you the problems I have had with them, not only that -- every time the damn thing wanted to connect to the internet to verify it was a legit copy my firewall went nuts on me. Worked well on PC for Photoshop CS2, CS2, Illustrator CS2, Corel X3...but whenever I tried to load the fonts in Illustrator CS3, Quark 7, InDesign CS2 & CS3 my computer would lose its mind on me and close out the software. On the Mac it worked a little better, but still not in Quark or InDesign. It said they would work on the website but I tried multiple systems and had the same problems throughout. Chuck even sent me the files again but no luck =(
As of right now it still looks like all the fonts created and recreated up until now use this anti-piracy OpenType format though.
http://www.letterheadfonts.com/support/changes.shtml
Believe me, there is nothing more then I would like to see Chuck and LHF make tons of money selling their fonts, trust me...I have given them tons of my own lol, but this thing killed user work flow and I know plenty of people that stopped buying their fonts because of it. Its a double edged sword that sucks; make a anti-piracy method to detour users from stealing your fonts, yet at the same time -- turn away many longtime customers because they cannot use your nice new fonts properly, especially in agencies where most fonts are purchased in bulk licensing the fonts reside on a font server...not on actual workstations, this method completely crippled that and they stopped using LHF. Soooo Chuck really did do away with this method, I am thrilled.