I would very much like to see VoIP on RISC OS. Apart from being useful in its own right, it's also one of those technologies that one will soon need on a computer to interact with others (a bit like instant messaging - you can live without it but you'll end up questioning why you can't do it while others can).
I see this as a market opportunity but also, as I implied above, as a defence of our platform against the need to run Windows/MacOS/whatever in parallel with RISC OS.
It's also something that needs to be done right. Elements of it need to be in an open framework for other RO applications to hook into (eg the ability of a database app to offer a 'call the phone number now' button). That, and the OS implications mentioned in the article, make me wonder if Castle or ROL need to do at least some of it. Or perhaps define the framework.
I do hope we don't end up with a repeat of the USB saga and have more than one standard.
Don't I recall Acorn showing a video-conference application at a show shortly before their demise?