I found a recent thread by Jake on the Cineform Tech Blog
http://techblog.cineform.com/?p=3361

>>
If you wish to move your CineForm Neo license from one Mac to another, follow these steps.

At this point, you can install and activate the product on another PC using the usual activation instructions.
>>

Is this a typo or are we allowed to use our NeoHD license from a Mac to a second activation on a PC ?

It is a typo. Licenses are per system type.

fixed the typo. sorry for the confusion.