Neonode signed up a 5th ebook reader maker today, and I'd say that they are are well on their way to controlling a solid chunk of the touchscreen market.
Neonode and Onyx have agreed to a multi-year license agreement for the zForce touchscreen tech. This touchscreen, which is already being used in the Sony Readers, Nook Touch, and the new Kobo Touch, is based on IR sensors. It offers a touchscreen sensor without requiring a touchpanel in front of the screen (like resistive or capacitive) or behind the screen (Wacom).
Onyx plan to have their first zForce equipped ebook reader on the market in Europe this fall.