The one I've got can stream - It's a couple seconds lagged via the built in wifi but supposedly instant live-feed via HDMI (untested, yet)

Oh, that's great. Maybe they will have an 3G connection some day so we can stream directly from the device to the internet. :)

I dunno a local wifi connection eats battery like nobody's business! Obviously no good for wireless streaming but you could connect it up to a HDMI capture card and stream via a computer

Actually there's probably a way to do that via a phone or something. I need to play around with my GoPro a bit more