I'm not sure if everyone has heard, but Rod has posted on Facebook that, barring any catastrophe, the brushes should be back in stock on Wednesday. This time they will be offering the original 26mm "Kong" and introducing the 22mm "Little Brother". Names are not official, but nicknames given by the community, so don't quote me if they decide to call them something else.
For those who have been waiting, Stirling brushes are back in stock. 2 sizes to choose from. http://www.stirlingsoap.com/