Quote from the Ribbon Preview project site discussion:
fariazkarim wrote Jul 20 at 9:59 PM
Any idea when Ribbon Control for WPF
will be released for production use?
We like its many features, but not
sure if this is the right time to jump
in.
SamanthaMSFT wrote Jul 20 at 10:50 PM
If you haven't started yet, I would
wait for the CTP2 before you jump in.
That release will not be licensed for
production use, but it will be a lot
closer to V1 than the current preview
bits, so it won't be wasted effort if
you start investing in development on
the CTP2. We don't have a date set for
release of V1 yet, but it should be
ready at least by the time .NET 4.0
and VS 2010 are released, and
hopefully before then. Thanks!
BTW, note this claim, other Ribbon control implementations are subject to the same license:
SamanthaMSFT wrote Jan 7 at 10:44 PM
<...> Also, as far as I understand, I
believe that all of the third party
Ribbon controls (and developers who
choose to use them) are subject to the
Office Fluent UI License the same way
that the official control is. I know
that this is true for Ribbon controls
developed by Microsoft for other
platforms (MFC and Win7, for example),
and I know that the third-party WPF
control developers who license Ribbons
(and I believe their customers) are
also subject to the license.