Having played Super Metroid, I can confirm that it's a blinder of a game, as 2Ds go. Metroid Prime is NOT a first person shooter. It's a fusion of platforming, adventuring, and shooting. This game will rock. Only pain is, it doesn't get released over here till next year. If Freeloader was out, I'd import it in a second.
No doubt Groundy and Neoblade, who I presume are getting it about now, will let us know their opinions.