We see so many great concepts disappear from view before becoming reality that you could excuse us if by now we're a little jaded. That said, we've been holding on to hope that Teenage Engineering's pocket sequencer / synth / sampler / controller was the real deal. And what is this? According to the gang at Create Digital Music, who got hold of one of these things at NAMM 2010, the thing is real -- and it's coming soon. Even for a prototype, the OP-1 appe