Haven't had the time to play with some of the newly acquired chip sets but, while fixing a Gleebox configuration, did write a Gleebox interface to control the Si4703 radio. (Why? Don't know. It was the middle of the night and I was in a serious sleep deficit.) In any case, can now control the radio via: command line, web link, jabber bot, IRC bot, and (new) Gleebox command. Notes shortly.