I've got one on the way. Can't wait to play around with the remote firing feature (where you can engage the shutter from the flash, and they are synced).
I think that you mean that you can control and fire the flash with the camera. If you can fire the shutter from the flash, that would be great, my PW could do that with a special cable.
Actually Hugh is correct, you can fire the camera using the flash (From Canon Press Announcement):
The Speedlite 320EX also features the Remote Release functionality allowing users to trigger their camera from the flash.
Exactly. And I plan on mostly using this from behind the camera, not quite like Canon envisions it (from a distance). With my camera on a tripod, and me composing through the viewfinder, I'll just hold the flash up high and to the side, or wherever I need some dramatic lighting, press a button, and let the flash do the rest.
I mostly use my flash in manual mode, with my camera in manual as well, and often keep it well below full power, so I think this little baby is going to be perfect. Can't wait to get creative with it.
Edit: I might add that while people are bemoaning Canon for stagnation in other forums, they are ignoring little treats like this flash, which really think outside the box. Plus the zoom fisheye, which has probably been delayed mostly because of the tragedy in Japan, there is no indication that they've stopped being creative. They are just at the end of a major product cycle (5D, 1D) and their competition refreshed their lines lately. The whining that goes on sometimes as companies naturally leapfrog each other is maddening. Go out and shoot something while you're waiting on "your" company to surge to the front!