This is a weird one. Many 3DS "games" on the showroom floor show gameplay, but are just tech demos. This one shows nothing but cinematics, but is actually a proper game.
Yes, Resident Evil: Revelations is a full game currently in development at Capcom, and...that's all we know! Deduce what you want from the screenshots in the gallery to your left, all I know is, I'm glad there's now a Nintendo handheld can now take pre-rendered cutscenes in its stride.