@chromozone
So far, Microsoft PocketPC (running windowsCE) is currently the only platform that Amiga-Anywhere (formerly known as AmigaDE) is available on . I have no idea if AmigaInc have signed an exclusive deal with Microsoft or not.
If you are serious about amiga-only, shouldn't you be asking AmigaInc themselves why they have chosen to focus on AmigaDE for M$ PocketPC?
Pegasos & MorphOS are closer to the classic Amiga concept than AmigaDE on PocketPC.