Mozilla Labs Seabird: what an 'Open Web' mobile phone of the future could look like (video)
A few commenters on the Mozilla Labs blog have pointed out that it would be impossible to squeeze such hardware into that form factor -- but this is a concept! Not a reality! It's also only nominally a phone: the video doesn't show a single example of actually making a call.
It's truly beautiful, though, and I'm not ashamed to admit that the Bluetooth-and-infrared dongle left a rather large pool of saliva at the base of my computer chair.