MSDN JS-syntax conventions

What does the "(v)" stand for, in the following property syntax (I can only guess... "value")?

screen.updateInterval(v) [ = iInterval ]



One other thing...


iInterval

The property is read/write. The property has no default value.

A value of 0 (the default) disables the update interval.


Does zero usually mean "no", or is that something of a contradiction?

Hmm, (v) probably means "(get)", as opposed to the optional "[= set]".

Yet another oddity:

They've got some listings with a "new" image next to them (as in 'check this out dude'), and then a message like: "not currently implemented".

What's that about? How can something be both new and not implemented (must be a 'legal disclosure' thing)?