http://www.echoaudio.com/Products/IndigoIO/index.php

http://www.esi-pro.com/viewProduct.php?pid=10&page=1

If the Indigo doesn't have a smashingly better headphone output than the Waveterminal, then I will go with the Waveterminal. I had an Indigo IO for a few days, but it never produced sound so I returned it (for a full refund, actually). I am impressed with the waveterminal's features. The only other Ego product I own, the Romio (link), has performed admirably, but I've never tried it on a laptop.