Do not forget that the demo is not supposed to be playable. i.e. the PS team will not wait until the game is playable as that is not the intention of the first release. The point of the first release is to let people test out the technology and get feedback about several things. You will be able to walk around in a 3D world and interact with other people online.
I can say that it really look VERY cool but it is still a bit slow at this moment. This is because all of this is work in progress. Don\'t expect a finished (or even playable) game soon.
Greetings,