In case anyone else was wondering why it is still "is" and not "iz" in Simpel Fonetik, and how they justify "sh" as being composed of "s" and "h", the FAQ actually answers that.

I disagree about the 's', but otherwise I like it.

German's most newbie-ish computer magazine, Computer Bild, actually uses a pretty system to explain the pronunciation of IT terms to the layman.