That was very cool, almost a glimpse of what Flightsim might be like in 10-20 years. We are quite a ways there already if you think about the jump between FS98 and FSX (roughly 10 years apart). I think the major 'real' hurdle next from what was seen in that A320 vid compared to FSX, at least visually is the lighting. How light reflects off of surfaces/materials, realistic sun light, shadowing...etc. With Rex, ASE, realistic modelling...etc we are getting there. I swear at certian light angles the A2A Cub looks real, like I could reach my hand into my screen and touch it.
Cheers
TJ