Seems rootkey is a standalone application rather than integrated with the Qt wallet.
er....a little disappointed.
afaik it will be integrated in 2.0. The way BitKey operates right now is that it is a standalone application, it doesn't interact with any of the existing opensource code. Or at least that was my best understanding from what I was told, as a lay person I don't necessarily understand all the technical stuff even when it's explained to me.