Hold on there. Don't get too excited. It's not as if NVIDIA has just released
all of their technical documentation to the public. Rather, all that's
happened is that NVIDIA has provided one (1) piece of documentation -- which
everyone knew already -- and there is no promise of any future documentation.
All they've really said is that they'll have some people subscribed to the
mailing list. Even then there is no promise that they'll actually say or do
anything useful because that statement is qualified with a "try to chime in
when we can." (Emphasis on the end of that.)
So, it amounts to providing an already-known piece of documentation and a
statement that they might -- possibly -- perhaps -- maybe -- sort of --
potentially -- be able to sort of say something on the mailing list at some
future point if they're "allowed" to.
If NVIDIA were really interested in helping their assistance would not be
qualified.
It seems more like an opportunity to claim that they help "open source"
(since we know NVIDIA doesn't believe in freedom) without actually helping
since the info they provided is already known and they're not really
committing to do anything. But I'm willing to suspend judgement for now and
see what happens over time. At the same time please don't treat this as the
second coming.