Just saw some horrendous copies on Amazon, sold/manufactured by a company called Eafengrow.
http://www.amazon.com/s/ref=w_bl_hsx_s_ ... =Eafengrow
There's a ukpk, battlestation,tusk PITS,double bevel, and a wanna be rubicon. Other manufacturers like ZT too.
No direct reference to Spyderco, but obvious clones. Not sure what the recourse is here.