Seems like most bedliners have bits of ground up something (often rubber?) in them to provide texture. I can see the way it's applied having something to do with how much texture you end up with, but in general it seems like you'll get quite a bit of texture no matter how it's applied.
As stevew said, Durabak is one that offers bedliner with or without the ground up bits. I haven't tried the smooth stuff (I used textured Durabak in my Bronco), but that's the route I'd go if I wanted smooth bedliner.