It is probably the way of the future -the large sensors make the quality of the footage in some ways even better than most high end consumer camcorders.
Trouble is the slowness and noise of the autofocus still makes them a bit crap for everyday use.
The panasonic is different as the lens was made specifically with movie autofocus in mind – so fast and very quiet (technically not an SLR – but simlar sort of quality.)
There will be others to come though…. great to only need to take one device with you for all your needs.
I really want an HD camera now so i can watch vids on my home cinema screen 🙂