PCoIP have a theoretical limit of 120fps but I have never, even in a controlled lab environment with perfect setup, seen over 60-70fps and I have never heard about a requrement from a customer with 60fps+.
The lower limit is around 8fps for a office worker and 15-20fps for a knowledge worker. (a normal DVD is about 24fps.)
So if the requirement is REALLY steady 60fps+ then I would argue that any kind of remoting solution would not be suitable.
// Linjo