Hey Zero,
You might want to check out http://www.abyssmall.com, click on John's Johnson. John Waddington might be able to give you more info. Are you on the Johnson amp forum? There have been several discussions on the J-Station.
I don't think Johnson is doing as well as Line6 in the areas of marketing and user support (websites, patch library etc.) but I much prefer Johnson's quality and sound.
Rock On