Over at ID, a YouTube video of a celebration of the Ethiopian (and Eritrean) Ge'ez Rite . Check it out!
(This reminds me of Confirmation a few years ago, when Bishop Baker showed up at the parish with a visiting Ethiopian priest, based in the UK, who traveled around the world visiting the Ethiopian diaspora. He regaled us with stories of his country, and one thing I remember was that he was born Orthodox, and had to keep his conversion to Catholicism secret from his father, else he'd have been ostracized from his family!)
[Abu Daoud has a brief overview of the state of Christianity in Ethiopia at his blog.]