So how _do_ one run AmigaDE on the SL550?
You have to flash it with a new ROM, but I don't think you should bother. There's only an old version of DE available as far as I know. A lot has happened since version 1.0 and the applications that are currently written for Amiga-Anywhere won't een run on it unmodified anymore. Going to Tao's intent version 1.3 gave us a lot of improvements, but at the cost of backward compatibility. If you want to have a PDA with Amiga-Anywhere running on it, buy one of those thingies with a microsoft OS for now .... other platforms are in the works (I have a Compaq iPAQ myself, which works great).
The Zaurus is an excellent device (although on the previous devices the battery was drained pretty quickly), but if you want a PDA that can run Amiga-Anywhere right now you shouldn't spend your money on this device. Maybe later