I spoke with someone claiming to be a Manta
rep at the Miami boat show
in February. The impression I got was that the company was dead, unless orders "enough" came in to revive it. Given the economy, I'll hazard a guess that there weren't "enough" orders.
Having said that, its my understanding that Manta has died and been revived at least a couple times already. Time will tell if this last death is really permanent or not.