Could this be the straight dope? You decide!
Roger points me to Collection DX's report on Toynami's wares showcased at the New York Toy Fair '07, which submits that the Beta is there just to "gauge interest," explains that the two different color schemes of Skull Squadron Alpha are both being produced, and gives us a third, different lineup of Cyclones (one that includes all four regularly seen models from the TV series, and NO Sue Graham). Also showcased were two additions to the Macross 12" doll line -- the previously mentioned but unseen Max Jenius, and a new Hikaru in DYRL flightsuit.
Click here to take it all in.