The latest (unreleased) version of MWorks is part of the way there.
The new face recognizer supports capturing still images from the builtin camera. I was already considering an image-capture-only version of it (sans the face recognition part), and it wouldn't be too much of a stretch to expand that to video capture.
On the client side, there's a new Image Viewer window that displays still images written to the event stream. Again, it wouldn't be a big stretch to make it display videos, too.
In its current state, the face recognizer doesn't really do what you want, so I'd recommend waiting until I implement the new features I described. Also, if you want to use said features (or the face recognizer) prior to the next MWorks release, I'll need to install a pre-release version on your iPad's. That's not a problem for me; I just wanted you to be aware.