The => token is part of the C# 3.0 lambda syntax. My efforts to find the name of this token have failed so far.
http://msdn.microsoft.com/en-us/library/bb397687.aspx
Taken from the above: All lambda expressions use the lambda operator =>, which is read as "goes to".
Lambda operator
What it is called, in terms of how to pronounce it when reading code, is covered by Eric Lippert in Reading Code Over the Telephone.
It's referred to as the 'goes to' operator.
Turns out the answer depends on the context:
c=>c+1
c goes to c plus one
(Customer c)=>c.Name
customer c becomes c dot name
(Customer c)=>c.Age > 21
customer c such that c dot age is greater than 21