Caroline, make that at least one more from my list (though they might not know this yet :)).
On a related note, if you are working on SCORM/LORS and get paid for it, would you mind making the interface as slick as the one from Ilias (http://www.ilias.de/ios/index-e.html):
http://www.hsu-hh.de/download.php?brick_id=obUp84CGsbgtIdqZ
This is a (albeit german) PDF document and I'm more than willing to translate on chat if you'd like to know which slide shows what.
In general, if you are marketing .LRN in the US, you might want to take a very close (read: copy/paste) look at the PHP code of Ilias to save you quite some time and get a lot of ideas which you can sell in the future.