Excited about the Zune HD? We sure are! To make matters even more exciting, in the manual for the Zune HD, Microsoft basically announced that there will be other touch screen Microsoft Zune's to come.
In the A/V dock's start guide it read,
an HDMI cable (included) and a High Definition TV are required for high-definition viewing. Zune HD and other touch-screen Zune players also work with the composite A/V cable (included).
As of now, there are no other touch screen Zune's on the market, the Zune HD will be the first. So, obviously Microsoft is intending to make, or has already made another touch screen Zune according the this manual. We'll be sure to keep our eyes peeled!