OK, never mind I found it. Just a little more research... I was pretty tired. Any way, in case anyone else comes across this and doesn't know, here's what I found.
@ tells PBP that the next command is assembly, the assembly command nop (also noop) is short for No Operation. Essentially means do nothing. The PIC apparently takes 1 uSec to "Do Nothing" therefore a 1 uSec delay at 4 MHZ. Using PBP (2.5c at least) the minimum delay is 24 uSec @ 4 MHZ so the assembly "nop" is a work around for shorter time delays. Makes me wonder if...
@ nop
@ nop
@ nop
@ nop

is a 4 uSec delay? I bet the answer to that is in the PIC's data sheet.