I think people may be getting carried away with the choices part. Developer says this is a free choice section. In other words my impression was that there will be plenty of linear moments. This scene seemed insignificant to the main story, so choices like eating or homework are easy to implement.
I personally cant wait for the game though. Relax in bed and play. One thing though, I thought it would look alot closer to CGI than it does. I was actually a little let down on graphics front of this latest footage. Water from the tap, chairs in the living room. Wood on art desk etc. Also lots of visible polygons. Rough edges, not rounded, where you can see the triangles of the models. Regardless it does still look nice. But it's not in my top 3 best PS3 graphics anymore.
Still, after finishing Uncharted 1 and MGS4 on my new PS3 Slim at Xmas should be looking to get this.