They have released the teaser trailer for Indy IV and I gotta say, I am terribly excited. The moment when we see his shadow put the hat on turned me into a giddy little school girl again.
Also, if you want to see the monster from Cloverfield, then you can check out the toy. It looks weak as a toy, I gotta say (at least compared to the movie). It looks more like a jacked-up mouse than a real threat to mankind.