It was a dealer surprise as well. I received a dealer special .pdf last week announcing the BUG. They arrived in Golden on Monday and my shipment came in on Thursday morning.
The BUG is tiny, tiny, tiny... and comes in a VERY small white box labeled "BUG KNIFE". When I got the .pdf announcing their upcoming infestation, I went and bought a bunch of 24" chains to convert them into a Spyderco "necklace". Fits great through the lanyard hole.
The BUG KNIFE without the chain is also available. Very cute little buggers. Yes, this is a SAL surprise, and a good one. The BUG is probably the SHOT SHOW giveaway trinket, but apparently Golden decided to make them available to dealers as well. Therefore, End Users enjoy!
Spyderco Collector #162