Joey-- this is some crap that showed up in head shops and various convenience stores a couple of years ago. I'm not sure if you smoke it, ingest it orally, or how you do it up, because I never had the inclination to try any. Not sure if it's a stimulant because I haven't checked, but I figure DH is probably on the money about that. It sure does sound like a stimulant-- or at least, a hallucinogen that has stimulant properties.
DH is correct about it being in the "designer drug" category, which mainly indicates that it's either a chemical that hasn't been made illegal (yet), or it is an analog of some other chemical that is illegal, but which varies in its structural characteristics enough that it cannot be proscribed by means of the laws that are already on the books.
The first I heard of it was in Louisiana, a couple of years ago, and IIRC there was some sort of violent crime that brought everyone's attention to the stuff, which was apparently purchased at a gas station in Slidell. Louisiana made that stuff illegal nearly overnight, and I was surprised to find that it was still legal in Florida-- but then, you know how we Floridians can be...
Not sure how it compares to methamphetamine, really.