Wifi functionality

I would be interested in views on what the watch can achieve using wifi which apple has been very cagey about

I understand that:

1. It can be used to connect to the phone if Bluetooth not adequate or to assist with high speed transfer
2. It can be used to connect to the phone via a local area network. This sounds cool as you could get your phone notifications having dinner downstairs whilst your phone is upstairs - or something like that
3. It can connect to the internet independently of the phone via a local area network. This has been demonstrated by the ability to receive iMessages if the phone is switched off.

anything else observed ? (any other apps work besides iMessages ?)

I am hoping that more will be added later, e.g.:

1. The ability to choose and download apps
2. To play multiplayer games
3. Act as a remote for my wifi equipped camera

etc.

rgds