You probably will be able to hook the laptop to a television, play a DVD, close the laptop lid, and have a remote control.
Subnotebooks seem to the be the rage mostly in Asia. In Ameria we really want the bigger laptops.
Apple can only release and support a product if its going to move units. I don't think subnotebooks are a big enough market in the US for Apple to get into them.
No Avid and FCP do not really compete in the same market. Avid is a very hardware heavy system. While FCP is a software centric system.
Avid does make software centric systems but they are not made to scale from DV to HD the way FCP is able to.