With Amharic Writer, you can create, edit and modify Amharic documents to your heart's content. And with not one, but two included custom keyboards, typing in the Amharic language has never been easier or more satisfying.
There is a minor task of enabling either of the custom keyboards by going to Settings. Other than that, you can just have all the typing fun you would want.
You may even then use the keyboards in another application whenever you want to add in some Amharic text.