If you click the camera, it will open a still-frame photo (jpg) in your browser (this is based on IE and/or Firefox)
Battery did die.. it's back on the base now charging (but since it's on the base it will be working again, just not able to do much driving until the batteries charge up, seems to take at least an hour or so with that AA's)
Were you able to get audio?
Additionally, it looks like the sucker was out and about with you guys for almost 45 minutes before it died.. much better than I thought it would do, especially since it was doing substantial movement and not just video.
Going to have to start a "Pimp My Rovio" thread