All of the 20,25, 35, and 40A controllers are in stock and have the same universal sensored/sensorless behaviour with automatic hall mapping and dual levels of regen. The controller store page info has been updated with complete details of the new specifications.
We also have some miniature 15A controllers suitable for the small geared Tongxin/Outrider hubs, and are releasing a set of kit packages based around these motors and controllers in a new 'mini geared kits' section of the store site. Next in the works on this front are narrow 80mm wide motors with roller gears for folding bicycles.