I'm the creator of Natural Word. Yes, the product is no longer beta - it's now release 1.0.0, and can be obtained from http://www.softwaret...ries.com/NaturalWord
(it's free for home use).
Grorgy, are you having a problem with Natural Word and endnote add-in, or the ribbon? Unfortunately, last I heard, Office can only have add-ins running that are built for the same .NET version - so if you have something for .NET 1.1 (and Natural Word is .NET 2.0), you have to choose which add-in is installed.
Yes, it looks like Microsoft is recognizing that the ribbon interface is not the panacea they thought it was. Some people are visual, others auditory - I personally find ribbons a little annoying because I'm not a visual person, so I never use toolbars (prefer menus). Having toolbars forced on me is rather annoying.
This new ribbon add-on is nice, but I think it misses a point. Nowadays, you may need a PhD to figure out all of Word. More importantly, it takes a lot of effort to memorize how someone else arranges and calls things. When things are organized the way we like them to (i.e. called what we would call them, work the way we would want them to, etc.), we don't have to memorize anything - it comes naturally. When you're typing a document, it is very distracting to go from 'what I want' to 'where is that feature again?', or 'what did they call this again?'.
But enough preaching