Looks pretty roomy. Seats seven with room to space. SpaceX notes that the whole Soyuz descent module could fit into the pressurized cabin of the Dragon. Note in the last image above that Musk and the other two guys are standing in the Dragon.
The first cargo mission (unmanned) is scheduled for April 30. If all goes well (tests of the escape system are already underway), don't be surprised if SpaceX gets a manned Dragon mission going sooner than expected. So cool.
***Update***
Here's the SpaceX segment from 60 Minutes that just aired:
***Update***
Here's the SpaceX segment from 60 Minutes that just aired:








